Q: Is 421,168 a Prime Number?
A: No, 421,168 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 421168 can be evenly divided by 1 2 4 8 11 16 22 44 88 176 2,393 4,786 9,572 19,144 26,323 38,288 52,646 105,292 210,584 and 421,168, with no remainder.
Since 421,168 cannot be divided by just 1 and 421,168, it is not a prime number.