Q: Is 138,408 a Prime Number?
A: No, 138,408 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 138408 can be evenly divided by 1 2 3 4 6 8 12 24 73 79 146 158 219 237 292 316 438 474 584 632 876 948 1,752 1,896 5,767 11,534 17,301 23,068 34,602 46,136 69,204 and 138,408, with no remainder.
Since 138,408 cannot be divided by just 1 and 138,408, it is not a prime number.