Q: Is 1,187,609 a Prime Number?
A: No, 1,187,609 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 1187609 can be evenly divided by 1 61 19,469 and 1,187,609, with no remainder.
Since 1,187,609 cannot be divided by just 1 and 1,187,609, it is not a prime number.