Q: Is 421,142 a Prime Number?
A: No, 421,142 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 421142 can be evenly divided by 1 2 43 59 83 86 118 166 2,537 3,569 4,897 5,074 7,138 9,794 210,571 and 421,142, with no remainder.
Since 421,142 cannot be divided by just 1 and 421,142, it is not a prime number.