Q: Is 1,200,609 a Prime Number?
A: No, 1,200,609 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 1200609 can be evenly divided by 1 3 9 27 53 159 477 839 1,431 2,517 7,551 22,653 44,467 133,401 400,203 and 1,200,609, with no remainder.
Since 1,200,609 cannot be divided by just 1 and 1,200,609, it is not a prime number.