Q: Is 21,463 a Prime Number?
A: No, 21,463 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 21463 can be evenly divided by 1 13 127 169 1,651 and 21,463, with no remainder.
Since 21,463 cannot be divided by just 1 and 21,463, it is not a prime number.