Q: Is 171,428 a Prime Number?
A: No, 171,428 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 171428 can be evenly divided by 1 2 4 17 34 68 2,521 5,042 10,084 42,857 85,714 and 171,428, with no remainder.
Since 171,428 cannot be divided by just 1 and 171,428, it is not a prime number.