Q: Is 161,428 a Prime Number?
A: No, 161,428 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 161428 can be evenly divided by 1 2 4 40,357 80,714 and 161,428, with no remainder.
Since 161,428 cannot be divided by just 1 and 161,428, it is not a prime number.