Q: Is 21,329 a Prime Number?
A: No, 21,329 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 21329 can be evenly divided by 1 7 11 77 277 1,939 3,047 and 21,329, with no remainder.
Since 21,329 cannot be divided by just 1 and 21,329, it is not a prime number.