Q: Is 402,171 a Prime Number?
A: No, 402,171 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 402171 can be evenly divided by 1 3 7 11 21 33 77 231 1,741 5,223 12,187 19,151 36,561 57,453 134,057 and 402,171, with no remainder.
Since 402,171 cannot be divided by just 1 and 402,171, it is not a prime number.