Professor Cardy

Prime Number Calculator

PORTUGUESE ENGLISH SPANISH FRENCH GERMAN CHINESE

Enter an integer (max. 1,000,000)


642 = 2 × 3 × 107

642 is not a prime number.

All divisors of 642 (total: 8):
1, 2, 3, 6, 107, 214, 321, 642

About the Calculator

This calculator performs the decomposition of a number into its prime factors and lists all its natural divisors. Enter an integer between 1 and 1,000,000.

Curiosities

Enter a prime number to see curiosities about prime numbers!

The First 10,000 Prime Numbers