What two number when multiplied equals 1620 (one thousand six hundred twenty)?
From the aboves multiple we can see that 1620 is a multiple of 30 numbers.
The numbers are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620
These numbers are called the factors of 1620.
2 x 3 x 5= 1620
A prime number is a number that is divisible only by 1 and itself (without a remainder).
1620 is not a prime number because it is divisible by other number than 1 and itself.
Lets learn factorization of other numbers.