Q: Is 3,420,945 a Prime Number?
A: No, 3,420,945 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 3420945 can be evenly divided by 1 3 5 9 11 15 33 45 55 99 165 495 6,911 20,733 34,555 62,199 76,021 103,665 228,063 310,995 380,105 684,189 1,140,315 and 3,420,945, with no remainder.
Since 3,420,945 cannot be divided by just 1 and 3,420,945, it is not a prime number.