Q: Is 1,443,609 a Prime Number?
A: No, 1,443,609 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 1443609 can be evenly divided by 1 3 9 27 127 381 421 1,143 1,263 3,429 3,789 11,367 53,467 160,401 481,203 and 1,443,609, with no remainder.
Since 1,443,609 cannot be divided by just 1 and 1,443,609, it is not a prime number.