Q: Is 161,508 a Prime Number?
A: No, 161,508 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 161508 can be evenly divided by 1 2 3 4 6 12 43 86 129 172 258 313 516 626 939 1,252 1,878 3,756 13,459 26,918 40,377 53,836 80,754 and 161,508, with no remainder.
Since 161,508 cannot be divided by just 1 and 161,508, it is not a prime number.