Q: Is 39,904 a Prime Number?
A: No, 39,904 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 39904 can be evenly divided by 1 2 4 8 16 29 32 43 58 86 116 172 232 344 464 688 928 1,247 1,376 2,494 4,988 9,976 19,952 and 39,904, with no remainder.
Since 39,904 cannot be divided by just 1 and 39,904, it is not a prime number.