Q: Is 5,566,665 a Prime Number?
A: No, 5,566,665 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 5566665 can be evenly divided by 1 3 5 13 15 39 65 195 28,547 85,641 142,735 371,111 428,205 1,113,333 1,855,555 and 5,566,665, with no remainder.
Since 5,566,665 cannot be divided by just 1 and 5,566,665, it is not a prime number.