What two number when multiplied equals 12821 (twelve thousand eight hundred twenty one)?
From the aboves multiple we can see that 12821 is a multiple of 2 numbers.
The numbers are 1, 12821
These numbers are called the factors of 12821.
12821= 12821
A prime number is a number that is divisible only by 1 and itself (without a remainder).
12821 is a prime number because it has only two factors 1 and itself.
Lets learn factorization of other numbers.