What two number when multiplied equals 1561 (one thousand five hundred sixty one)?
From the aboves multiple we can see that 1561 is a multiple of 4 numbers.
The numbers are 1, 7, 223, 1561
These numbers are called the factors of 1561.
7 x 223= 1561
A prime number is a number that is divisible only by 1 and itself (without a remainder).
1561 is not a prime number because it is divisible by other number than 1 and itself.
Lets learn factorization of other numbers.