Q: Is 491,253 a Prime Number?
A: No, 491,253 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 491253 can be evenly divided by 1 3 7 21 149 157 447 471 1,043 1,099 3,129 3,297 23,393 70,179 163,751 and 491,253, with no remainder.
Since 491,253 cannot be divided by just 1 and 491,253, it is not a prime number.