Q: Is 257,536 a Prime Number?
A: No, 257,536 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 257536 can be evenly divided by 1 2 4 8 16 32 64 128 256 503 512 1,006 2,012 4,024 8,048 16,096 32,192 64,384 128,768 and 257,536, with no remainder.
Since 257,536 cannot be divided by just 1 and 257,536, it is not a prime number.