What two number when multiplied equals 661 (six hundred sixty one)?
From the aboves multiple we can see that 661 is a multiple of 2 numbers.
The numbers are 1, 661
These numbers are called the factors of 661.
661= 661
A prime number is a number that is divisible only by 1 and itself (without a remainder).
661 is a prime number because it has only two factors 1 and itself.
Lets learn factorization of other numbers.