Large numbers to string in JavaScript - Stack Overflow

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When I do the following:

alert((2053716830872415770228778006271971120334843128349550587141047275840274143041).toString());

I get the "2.053716830872415e+75" exponential notation. I want to alert the number as is. I tried toFixed(), toPrecision() and toLocaleString() and they output the same thing.

How can I acplish this? Note: the number is a variable, so I cannot alert("208..");

When I do the following:

alert((2053716830872415770228778006271971120334843128349550587141047275840274143041).toString());

I get the "2.053716830872415e+75" exponential notation. I want to alert the number as is. I tried toFixed(), toPrecision() and toLocaleString() and they output the same thing.

How can I acplish this? Note: the number is a variable, so I cannot alert("208..");

• javascript
• number-formatting

Share Improve this question Follow asked Feb 13, 2011 at 15:55 SuprDewdSuprDewd 26966 silver badges1212 bronze badges

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1 Answer 1

Sorted by: Reset to default 6

Javascript uses 64-bit floating point numbers.
It is impossible to precisely store your value in a Javascript number.

Instead, you should use a BigInteger library.

• http://www.leemon./crypto/BigInt.html
• http://www-cs-students.stanford.edu/~tjw/jsbn/
• https://github./jtobey/javascript-bignum

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