Q: Is 21,627 a Prime Number?
A: No, 21,627 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 21627 can be evenly divided by 1 3 9 27 81 89 243 267 801 2,403 7,209 and 21,627, with no remainder.
Since 21,627 cannot be divided by just 1 and 21,627, it is not a prime number.