diff --git a/packages/eslint-plugin/docs/rules/no-loss-of-precision.mdx b/packages/eslint-plugin/docs/rules/no-loss-of-precision.mdx
index 07fb1f0deb56..77f48255ae4a 100644
--- a/packages/eslint-plugin/docs/rules/no-loss-of-precision.mdx
+++ b/packages/eslint-plugin/docs/rules/no-loss-of-precision.mdx
@@ -9,5 +9,9 @@ import TabItem from '@theme/TabItem';
 >
 > See **https://typescript-eslint.io/rules/no-loss-of-precision** for documentation.
 
-This rule extends the base [`eslint/no-loss-of-precision`](https://eslint.org/docs/rules/no-loss-of-precision) rule.
-It adds support for [numeric separators](https://github.com/tc39/proposal-numeric-separator).
+:::danger Deprecated
+
+This rule has been deprecated because the base [`eslint/no-loss-of-precision`](https://eslint.org/docs/rules/no-loss-of-precision) rule added support for [numeric separators](https://github.com/tc39/proposal-numeric-separator).
+There is no longer any need to use this extension rule.
+
+:::
diff --git a/packages/eslint-plugin/src/configs/all.ts b/packages/eslint-plugin/src/configs/all.ts
index 1e7304e45a36..71db2c523b2b 100644
--- a/packages/eslint-plugin/src/configs/all.ts
+++ b/packages/eslint-plugin/src/configs/all.ts
@@ -69,8 +69,6 @@ export = {
     '@typescript-eslint/no-invalid-void-type': 'error',
     'no-loop-func': 'off',
     '@typescript-eslint/no-loop-func': 'error',
-    'no-loss-of-precision': 'off',
-    '@typescript-eslint/no-loss-of-precision': 'error',
     'no-magic-numbers': 'off',
     '@typescript-eslint/no-magic-numbers': 'error',
     '@typescript-eslint/no-meaningless-void-operator': 'error',
diff --git a/packages/eslint-plugin/src/configs/recommended-type-checked.ts b/packages/eslint-plugin/src/configs/recommended-type-checked.ts
index 38d36c132851..20993a066405 100644
--- a/packages/eslint-plugin/src/configs/recommended-type-checked.ts
+++ b/packages/eslint-plugin/src/configs/recommended-type-checked.ts
@@ -24,8 +24,6 @@ export = {
     '@typescript-eslint/no-for-in-array': 'error',
     'no-implied-eval': 'off',
     '@typescript-eslint/no-implied-eval': 'error',
-    'no-loss-of-precision': 'off',
-    '@typescript-eslint/no-loss-of-precision': 'error',
     '@typescript-eslint/no-misused-new': 'error',
     '@typescript-eslint/no-misused-promises': 'error',
     '@typescript-eslint/no-namespace': 'error',
diff --git a/packages/eslint-plugin/src/configs/recommended.ts b/packages/eslint-plugin/src/configs/recommended.ts
index 80a607a3288f..58f31702ada3 100644
--- a/packages/eslint-plugin/src/configs/recommended.ts
+++ b/packages/eslint-plugin/src/configs/recommended.ts
@@ -17,8 +17,6 @@ export = {
     '@typescript-eslint/no-duplicate-enum-values': 'error',
     '@typescript-eslint/no-explicit-any': 'error',
     '@typescript-eslint/no-extra-non-null-assertion': 'error',
-    'no-loss-of-precision': 'off',
-    '@typescript-eslint/no-loss-of-precision': 'error',
     '@typescript-eslint/no-misused-new': 'error',
     '@typescript-eslint/no-namespace': 'error',
     '@typescript-eslint/no-non-null-asserted-optional-chain': 'error',
diff --git a/packages/eslint-plugin/src/configs/strict-type-checked.ts b/packages/eslint-plugin/src/configs/strict-type-checked.ts
index 26d8d9698812..5b00d2369842 100644
--- a/packages/eslint-plugin/src/configs/strict-type-checked.ts
+++ b/packages/eslint-plugin/src/configs/strict-type-checked.ts
@@ -32,8 +32,6 @@ export = {
     'no-implied-eval': 'off',
     '@typescript-eslint/no-implied-eval': 'error',
     '@typescript-eslint/no-invalid-void-type': 'error',
-    'no-loss-of-precision': 'off',
-    '@typescript-eslint/no-loss-of-precision': 'error',
     '@typescript-eslint/no-meaningless-void-operator': 'error',
     '@typescript-eslint/no-misused-new': 'error',
     '@typescript-eslint/no-misused-promises': 'error',
diff --git a/packages/eslint-plugin/src/configs/strict.ts b/packages/eslint-plugin/src/configs/strict.ts
index dbf57cc2c3f6..598b3246e270 100644
--- a/packages/eslint-plugin/src/configs/strict.ts
+++ b/packages/eslint-plugin/src/configs/strict.ts
@@ -23,8 +23,6 @@ export = {
     '@typescript-eslint/no-extra-non-null-assertion': 'error',
     '@typescript-eslint/no-extraneous-class': 'error',
     '@typescript-eslint/no-invalid-void-type': 'error',
-    'no-loss-of-precision': 'off',
-    '@typescript-eslint/no-loss-of-precision': 'error',
     '@typescript-eslint/no-misused-new': 'error',
     '@typescript-eslint/no-namespace': 'error',
     '@typescript-eslint/no-non-null-asserted-nullish-coalescing': 'error',
diff --git a/packages/eslint-plugin/src/rules/no-loss-of-precision.ts b/packages/eslint-plugin/src/rules/no-loss-of-precision.ts
index 06938f9e4dcf..000e5d9aa0bc 100644
--- a/packages/eslint-plugin/src/rules/no-loss-of-precision.ts
+++ b/packages/eslint-plugin/src/rules/no-loss-of-precision.ts
@@ -1,5 +1,3 @@
-import type { TSESTree } from '@typescript-eslint/utils';
-
 import type {
   InferMessageIdsTypeFromRule,
   InferOptionsTypeFromRule,
@@ -16,9 +14,9 @@ export default createRule<Options, MessageIds>({
   name: 'no-loss-of-precision',
   meta: {
     type: 'problem',
+    deprecated: true,
     docs: {
       description: 'Disallow literal numbers that lose precision',
-      recommended: 'recommended',
       extendsBaseRule: true,
     },
     hasSuggestions: baseRule.meta.hasSuggestions,
@@ -27,18 +25,6 @@ export default createRule<Options, MessageIds>({
   },
   defaultOptions: [],
   create(context) {
-    const rules = baseRule.create(context);
-
-    function isSeparatedNumeric(node: TSESTree.Literal): boolean {
-      return typeof node.value === 'number' && node.raw.includes('_');
-    }
-    return {
-      Literal(node: TSESTree.Literal): void {
-        rules.Literal({
-          ...node,
-          raw: isSeparatedNumeric(node) ? node.raw.replace(/_/g, '') : node.raw,
-        } as never);
-      },
-    };
+    return baseRule.create(context);
   },
 });
diff --git a/packages/typescript-eslint/src/configs/all.ts b/packages/typescript-eslint/src/configs/all.ts
index efe0d16fceb8..e555dd197e5e 100644
--- a/packages/typescript-eslint/src/configs/all.ts
+++ b/packages/typescript-eslint/src/configs/all.ts
@@ -78,8 +78,6 @@ export default (
       '@typescript-eslint/no-invalid-void-type': 'error',
       'no-loop-func': 'off',
       '@typescript-eslint/no-loop-func': 'error',
-      'no-loss-of-precision': 'off',
-      '@typescript-eslint/no-loss-of-precision': 'error',
       'no-magic-numbers': 'off',
       '@typescript-eslint/no-magic-numbers': 'error',
       '@typescript-eslint/no-meaningless-void-operator': 'error',
diff --git a/packages/typescript-eslint/src/configs/recommended-type-checked.ts b/packages/typescript-eslint/src/configs/recommended-type-checked.ts
index a21f35b51220..5dc2fe5a1245 100644
--- a/packages/typescript-eslint/src/configs/recommended-type-checked.ts
+++ b/packages/typescript-eslint/src/configs/recommended-type-checked.ts
@@ -33,8 +33,6 @@ export default (
       '@typescript-eslint/no-for-in-array': 'error',
       'no-implied-eval': 'off',
       '@typescript-eslint/no-implied-eval': 'error',
-      'no-loss-of-precision': 'off',
-      '@typescript-eslint/no-loss-of-precision': 'error',
       '@typescript-eslint/no-misused-new': 'error',
       '@typescript-eslint/no-misused-promises': 'error',
       '@typescript-eslint/no-namespace': 'error',
diff --git a/packages/typescript-eslint/src/configs/recommended.ts b/packages/typescript-eslint/src/configs/recommended.ts
index a26db1e69f37..d3aefe296189 100644
--- a/packages/typescript-eslint/src/configs/recommended.ts
+++ b/packages/typescript-eslint/src/configs/recommended.ts
@@ -26,8 +26,6 @@ export default (
       '@typescript-eslint/no-duplicate-enum-values': 'error',
       '@typescript-eslint/no-explicit-any': 'error',
       '@typescript-eslint/no-extra-non-null-assertion': 'error',
-      'no-loss-of-precision': 'off',
-      '@typescript-eslint/no-loss-of-precision': 'error',
       '@typescript-eslint/no-misused-new': 'error',
       '@typescript-eslint/no-namespace': 'error',
       '@typescript-eslint/no-non-null-asserted-optional-chain': 'error',
diff --git a/packages/typescript-eslint/src/configs/strict-type-checked.ts b/packages/typescript-eslint/src/configs/strict-type-checked.ts
index ad62ee749e25..0f786b3f401f 100644
--- a/packages/typescript-eslint/src/configs/strict-type-checked.ts
+++ b/packages/typescript-eslint/src/configs/strict-type-checked.ts
@@ -41,8 +41,6 @@ export default (
       'no-implied-eval': 'off',
       '@typescript-eslint/no-implied-eval': 'error',
       '@typescript-eslint/no-invalid-void-type': 'error',
-      'no-loss-of-precision': 'off',
-      '@typescript-eslint/no-loss-of-precision': 'error',
       '@typescript-eslint/no-meaningless-void-operator': 'error',
       '@typescript-eslint/no-misused-new': 'error',
       '@typescript-eslint/no-misused-promises': 'error',
diff --git a/packages/typescript-eslint/src/configs/strict.ts b/packages/typescript-eslint/src/configs/strict.ts
index 1750e9be0389..0406dc76e0f8 100644
--- a/packages/typescript-eslint/src/configs/strict.ts
+++ b/packages/typescript-eslint/src/configs/strict.ts
@@ -32,8 +32,6 @@ export default (
       '@typescript-eslint/no-extra-non-null-assertion': 'error',
       '@typescript-eslint/no-extraneous-class': 'error',
       '@typescript-eslint/no-invalid-void-type': 'error',
-      'no-loss-of-precision': 'off',
-      '@typescript-eslint/no-loss-of-precision': 'error',
       '@typescript-eslint/no-misused-new': 'error',
       '@typescript-eslint/no-namespace': 'error',
       '@typescript-eslint/no-non-null-asserted-nullish-coalescing': 'error',