Number Analysis: 81640

The number 81640 is composite.

Factors of 81640

1 2 4 5 8 10 13 20 26 40 52 65 104 130 157 260 314 520 628 785 1256 1570 2041 3140 4082 6280 8164 10205 16328 20410 40820 81640

81640 is a composite number because it has factors other than 1 and itself.

It can be written as the product of prime numbers:

222513157

Check the number prime or composite