Q: Is 3,109,743 a Prime Number?
A: No, 3,109,743 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 3109743 can be evenly divided by 1 3 7 9 13 21 39 63 91 117 273 819 3,797 11,391 26,579 34,173 49,361 79,737 148,083 239,211 345,527 444,249 1,036,581 and 3,109,743, with no remainder.
Since 3,109,743 cannot be divided by just 1 and 3,109,743, it is not a prime number.