Q: Is 561,565 a Prime Number?
A: No, 561,565 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 561565 can be evenly divided by 1 5 31 155 3,623 18,115 112,313 and 561,565, with no remainder.
Since 561,565 cannot be divided by just 1 and 561,565, it is not a prime number.