Q: Is 561,723 a Prime Number?
A: No, 561,723 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 561723 can be evenly divided by 1 3 113 339 1,657 4,971 187,241 and 561,723, with no remainder.
Since 561,723 cannot be divided by just 1 and 561,723, it is not a prime number.