Q: Is 561,765 a Prime Number?
A: No, 561,765 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 561765 can be evenly divided by 1 3 5 15 17 51 85 255 2,203 6,609 11,015 33,045 37,451 112,353 187,255 and 561,765, with no remainder.
Since 561,765 cannot be divided by just 1 and 561,765, it is not a prime number.