Q: Is 423,904 a Prime Number?
A: No, 423,904 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 423904 can be evenly divided by 1 2 4 8 13 16 26 32 52 104 208 416 1,019 2,038 4,076 8,152 13,247 16,304 26,494 32,608 52,988 105,976 211,952 and 423,904, with no remainder.
Since 423,904 cannot be divided by just 1 and 423,904, it is not a prime number.