Q: Is 3,988,628 a Prime Number?
A: No, 3,988,628 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 3988628 can be evenly divided by 1 2 4 7 14 28 167 334 668 853 1,169 1,706 2,338 3,412 4,676 5,971 11,942 23,884 142,451 284,902 569,804 997,157 1,994,314 and 3,988,628, with no remainder.
Since 3,988,628 cannot be divided by just 1 and 3,988,628, it is not a prime number.