Q: Is 561,273 a Prime Number?
A: No, 561,273 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 561273 can be evenly divided by 1 3 187,091 and 561,273, with no remainder.
Since 561,273 cannot be divided by just 1 and 561,273, it is not a prime number.