Q: Is 42,642 a Prime Number?
A: No, 42,642 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 42642 can be evenly divided by 1 2 3 6 9 18 23 46 69 103 138 206 207 309 414 618 927 1,854 2,369 4,738 7,107 14,214 21,321 and 42,642, with no remainder.
Since 42,642 cannot be divided by just 1 and 42,642, it is not a prime number.