Q: Is 161,145 a Prime Number?
A: No, 161,145 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 161145 can be evenly divided by 1 3 5 9 15 45 3,581 10,743 17,905 32,229 53,715 and 161,145, with no remainder.
Since 161,145 cannot be divided by just 1 and 161,145, it is not a prime number.