Q: Is 491,871 a Prime Number?
A: No, 491,871 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 491871 can be evenly divided by 1 3 127 381 1,291 3,873 163,957 and 491,871, with no remainder.
Since 491,871 cannot be divided by just 1 and 491,871, it is not a prime number.