Prime and Factors

Break a number down into the primes it is made of, see every divisor it has, and check whether it is prime at all. Big numbers welcome.

Number

Whole number

Anything up to about twenty digits. Commas and spaces are ignored.

Try one

Result

Prime factorization

Divisors

Divisors appear here.

GCD and LCM

Two or more numbers

Primes in a range

From

A window of up to a million numbers.