What two number when multiplied equals 644 (six hundred forty four)?
From the aboves multiple we can see that 644 is a multiple of 12 numbers.
The numbers are 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
These numbers are called the factors of 644.
2 x 7 x 23= 644
A prime number is a number that is divisible only by 1 and itself (without a remainder).
644 is not a prime number because it is divisible by other number than 1 and itself.
Lets learn factorization of other numbers.