Q: Is 167,391 a Prime Number?
A: No, 167,391 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 167391 can be evenly divided by 1 3 7 9 21 63 2,657 7,971 18,599 23,913 55,797 and 167,391, with no remainder.
Since 167,391 cannot be divided by just 1 and 167,391, it is not a prime number.