Q: Is 21,446 a Prime Number?
A: No, 21,446 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 21446 can be evenly divided by 1 2 10,723 and 21,446, with no remainder.
Since 21,446 cannot be divided by just 1 and 21,446, it is not a prime number.