Q: Is 677,409 a Prime Number?
A: No, 677,409 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 677409 can be evenly divided by 1 3 349 647 1,047 1,941 225,803 and 677,409, with no remainder.
Since 677,409 cannot be divided by just 1 and 677,409, it is not a prime number.