GlenCalc

Big number calculator

Ordinary calculators round after about 15 digits. This one works with whole numbers of any length and keeps every digit.

Whole numbers of any length; try one with 40 digits.

Your answer

Result1,200
Digits4

Worked out in your browser. Nothing you type is sent to a server.

How we worked it out

Updated as you change the numbers.

  1. Worked out with exact integer arithmetic (JavaScript BigInt), so no digits are rounded away.

Method and assumptions

The numbers are stored as arbitrary-precision integers, so the result is exact however many digits it has. Division gives the whole-number quotient and the remainder; for a decimal result use the long division calculator.

Questions

How many digits does 100! have?

158.

Sources

Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.

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