Q: Is 18,408 a Prime Number?
A: No, 18,408 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 18408 can be evenly divided by 1 2 3 4 6 8 12 13 24 26 39 52 59 78 104 118 156 177 236 312 354 472 708 767 1,416 1,534 2,301 3,068 4,602 6,136 9,204 and 18,408, with no remainder.
Since 18,408 cannot be divided by just 1 and 18,408, it is not a prime number.