Q: Is 77,661 a Prime Number?
A: No, 77,661 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 77661 can be evenly divided by 1 3 9 8,629 25,887 and 77,661, with no remainder.
Since 77,661 cannot be divided by just 1 and 77,661, it is not a prime number.