Q: Is 42,408 a Prime Number?
A: No, 42,408 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 42408 can be evenly divided by 1 2 3 4 6 8 9 12 18 19 24 31 36 38 57 62 72 76 93 114 124 152 171 186 228 248 279 342 372 456 558 589 684 744 1,116 1,178 1,368 1,767 2,232 2,356 3,534 4,712 5,301 7,068 10,602 14,136 21,204 and 42,408, with no remainder.
Since 42,408 cannot be divided by just 1 and 42,408, it is not a prime number.