What two number when multiplied equals 17991 (seventeen thousand nine hundred ninety one)?
From the aboves multiple we can see that 17991 is a multiple of 6 numbers.
The numbers are 1, 3, 9, 1999, 5997, 17991
These numbers are called the factors of 17991.
3 x 1999= 17991
A prime number is a number that is divisible only by 1 and itself (without a remainder).
17991 is not a prime number because it is divisible by other number than 1 and itself.
Lets learn factorization of other numbers.