Q: Is 3,120,642 a Prime Number?
A: No, 3,120,642 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 3120642 can be evenly divided by 1 2 3 6 7 9 14 18 21 42 63 126 24,767 49,534 74,301 148,602 173,369 222,903 346,738 445,806 520,107 1,040,214 1,560,321 and 3,120,642, with no remainder.
Since 3,120,642 cannot be divided by just 1 and 3,120,642, it is not a prime number.