Q: Is 263,564 a Prime Number?
A: No, 263,564 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 263564 can be evenly divided by 1 2 4 7 14 28 9,413 18,826 37,652 65,891 131,782 and 263,564, with no remainder.
Since 263,564 cannot be divided by just 1 and 263,564, it is not a prime number.