Q: Is 255,138 a Prime Number?
A: No, 255,138 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 255138 can be evenly divided by 1 2 3 6 13 26 39 78 3,271 6,542 9,813 19,626 42,523 85,046 127,569 and 255,138, with no remainder.
Since 255,138 cannot be divided by just 1 and 255,138, it is not a prime number.