Q: Is 421,712 a Prime Number?
A: No, 421,712 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 421712 can be evenly divided by 1 2 4 8 16 26,357 52,714 105,428 210,856 and 421,712, with no remainder.
Since 421,712 cannot be divided by just 1 and 421,712, it is not a prime number.