Q: Is 256,490 a Prime Number?
A: No, 256,490 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 256490 can be evenly divided by 1 2 5 10 13 26 65 130 1,973 3,946 9,865 19,730 25,649 51,298 128,245 and 256,490, with no remainder.
Since 256,490 cannot be divided by just 1 and 256,490, it is not a prime number.