Q: Is 255,400 a Prime Number?
A: No, 255,400 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 255400 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 1,277 2,554 5,108 6,385 10,216 12,770 25,540 31,925 51,080 63,850 127,700 and 255,400, with no remainder.
Since 255,400 cannot be divided by just 1 and 255,400, it is not a prime number.