Q: Is 172,155 a Prime Number?
A: No, 172,155 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 172155 can be evenly divided by 1 3 5 15 23 69 115 345 499 1,497 2,495 7,485 11,477 34,431 57,385 and 172,155, with no remainder.
Since 172,155 cannot be divided by just 1 and 172,155, it is not a prime number.