Q: Is 561,977 a Prime Number?
A: No, 561,977 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 561977 can be evenly divided by 1 13 139 311 1,807 4,043 43,229 and 561,977, with no remainder.
Since 561,977 cannot be divided by just 1 and 561,977, it is not a prime number.