Q: Is 421,988 a Prime Number?
A: No, 421,988 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 421988 can be evenly divided by 1 2 4 7 14 28 49 98 196 2,153 4,306 8,612 15,071 30,142 60,284 105,497 210,994 and 421,988, with no remainder.
Since 421,988 cannot be divided by just 1 and 421,988, it is not a prime number.