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JavaScript Number MAX_SAFE_INTEGER Property

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The JavaScript Number.MAX_SAFE_INTEGER is a constant number that represents the maximum safe integer. This constant has a value of (253 – 1). Here safe refers to the ability to represent integers and to compare them.

Syntax:

Number.MAX_SAFE_INTEGER

Return Value: A constant number.

Example 1: Below example illustrates the usage of Number.MAX_SAFE_INTEGER

Javascript




const a = Number.MAX_SAFE_INTEGER + 1;
const b = Number.MAX_SAFE_INTEGER + 2;
  
console.log(Number.MAX_SAFE_INTEGER);
console.log(a);
console.log(a === b);


Output:

9007199254740991
9007199254740992
true

Example 2: Below example illustrates the usage of the constants Number.MAX_SAFE_INTEGER using Math.pow() function.

Javascript




const a = Number.MAX_SAFE_INTEGER;
const b = -(Math.pow(2, 53) - 1);
  
console.log(a);
console.log(b);
console.log(a === b);


Output:

9007199254740991
-9007199254740991
false

Supported Browsers:

  • Chrome 34 and above
  • Internet Explorer (Not Supported)
  • Firefox 31 and above
  • Edge 12 and above
  • Safari 9 and above
  • Opera 21 and above

We have a complete list of JavaScript Number constructor, properties, and methods list, to know more about the numbers please go through that article.


Last Updated : 15 May, 2023
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