What two number when multiplied equals 1638 (one thousand six hundred thirty eight)?
From the aboves multiple we can see that 1638 is a multiple of 24 numbers.
The numbers are 1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638
These numbers are called the factors of 1638.
2 x 3 x 7 x 13= 1638
A prime number is a number that is divisible only by 1 and itself (without a remainder).
1638 is not a prime number because it is divisible by other number than 1 and itself.
Lets learn factorization of other numbers.