Q: Is 421,704 a Prime Number?
A: No, 421,704 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 421704 can be evenly divided by 1 2 3 4 6 8 9 12 18 24 36 72 5,857 11,714 17,571 23,428 35,142 46,856 52,713 70,284 105,426 140,568 210,852 and 421,704, with no remainder.
Since 421,704 cannot be divided by just 1 and 421,704, it is not a prime number.