Big Integer Calculator: 100 digits! A million digits?!
JavaScripter.net
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Math with JavaScript
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Prime Factors
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Divisors
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Euler's Totient φ(n)
This online big integer calculator is written entirely in JavaScript.
It uses a set of customized functions based in part on the public-domain arbitrary precision arithmetic library BigInt.js.
The calculator takes two integers x and y as input, and produces integer results. This means that even when you divide x by y, you always get an integer; the fractional part of the result is truncated. For example, the operation 14/5 will produce the integer 2, rather than the decimal 2.8. (To calculate the remainder of division, use the mod button.)
Simplest arithmetic operations support million-digit input values – and even larger
if the user doesn’t mind the long wait.
Primality tests (based on the Miller-Rabin algorithm)
become noticeably slower when x is over a hundred digits long.
Powers xy may be slow to compute for input values x containing tens of digits and 3-digit exponents y.
Factorials x! become slow for input values
See also:
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Other calculators:
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