Number 661 - properties and curiosities

Six hundred sixty one

661 is an odd number.

661 is a prime number, which means it is only divisible by 1 and itself.

In binary, 661 is represented as 1010010101.

In hex, 661 is represented as 295.

Prime factorization of 661: 661.

Factors of 661 are: 1, 661.