Q: Is 3,688,628 a Prime Number?
A: No, 3,688,628 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 3688628 can be evenly divided by 1 2 4 31 62 124 151 197 302 394 604 788 4,681 6,107 9,362 12,214 18,724 24,428 29,747 59,494 118,988 922,157 1,844,314 and 3,688,628, with no remainder.
Since 3,688,628 cannot be divided by just 1 and 3,688,628, it is not a prime number.