What two number when multiplied equals 12991 (twelve thousand nine hundred ninety one)?
From the aboves multiple we can see that 12991 is a multiple of 4 numbers.
The numbers are 1, 11, 1181, 12991
These numbers are called the factors of 12991.
11 x 1181= 12991
A prime number is a number that is divisible only by 1 and itself (without a remainder).
12991 is not a prime number because it is divisible by other number than 1 and itself.
Lets learn factorization of other numbers.