Q: Is 21,272 a Prime Number?
A: No, 21,272 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 21272 can be evenly divided by 1 2 4 8 2,659 5,318 10,636 and 21,272, with no remainder.
Since 21,272 cannot be divided by just 1 and 21,272, it is not a prime number.