Q: Is 3,421,665 a Prime Number?
A: No, 3,421,665 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 3421665 can be evenly divided by 1 3 5 9 13 15 39 45 65 117 195 585 5,849 17,547 29,245 52,641 76,037 87,735 228,111 263,205 380,185 684,333 1,140,555 and 3,421,665, with no remainder.
Since 3,421,665 cannot be divided by just 1 and 3,421,665, it is not a prime number.