Q: Is 172,409 a Prime Number?
A: No, 172,409 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 172409 can be evenly divided by 1 53 3,253 and 172,409, with no remainder.
Since 172,409 cannot be divided by just 1 and 172,409, it is not a prime number.