Q: Is 561,516 a Prime Number?
A: No, 561,516 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 561516 can be evenly divided by 1 2 3 4 6 12 73 146 219 292 438 641 876 1,282 1,923 2,564 3,846 7,692 46,793 93,586 140,379 187,172 280,758 and 561,516, with no remainder.
Since 561,516 cannot be divided by just 1 and 561,516, it is not a prime number.