Q: Is 3,420,520 a Prime Number?
A: No, 3,420,520 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 3420520 can be evenly divided by 1 2 4 5 8 10 20 40 85,513 171,026 342,052 427,565 684,104 855,130 1,710,260 and 3,420,520, with no remainder.
Since 3,420,520 cannot be divided by just 1 and 3,420,520, it is not a prime number.