Q: Is 21,472 a Prime Number?
A: No, 21,472 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 21472 can be evenly divided by 1 2 4 8 11 16 22 32 44 61 88 122 176 244 352 488 671 976 1,342 1,952 2,684 5,368 10,736 and 21,472, with no remainder.
Since 21,472 cannot be divided by just 1 and 21,472, it is not a prime number.