Q: Is 11,565 a Prime Number?
A: No, 11,565 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 11565 can be evenly divided by 1 3 5 9 15 45 257 771 1,285 2,313 3,855 and 11,565, with no remainder.
Since 11,565 cannot be divided by just 1 and 11,565, it is not a prime number.