Q: Is 21,344 a Prime Number?
A: No, 21,344 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 21344 can be evenly divided by 1 2 4 8 16 23 29 32 46 58 92 116 184 232 368 464 667 736 928 1,334 2,668 5,336 10,672 and 21,344, with no remainder.
Since 21,344 cannot be divided by just 1 and 21,344, it is not a prime number.