Q: Is 21,464 a Prime Number?
A: No, 21,464 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 21464 can be evenly divided by 1 2 4 8 2,683 5,366 10,732 and 21,464, with no remainder.
Since 21,464 cannot be divided by just 1 and 21,464, it is not a prime number.