Q: Is 424,640 a Prime Number?
A: No, 424,640 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 424640 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 160 320 1,327 2,654 5,308 6,635 10,616 13,270 21,232 26,540 42,464 53,080 84,928 106,160 212,320 and 424,640, with no remainder.
Since 424,640 cannot be divided by just 1 and 424,640, it is not a prime number.