Q: Is 7,643,428 a Prime Number?
A: No, 7,643,428 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 7643428 can be evenly divided by 1 2 4 13 26 52 146,989 293,978 587,956 1,910,857 3,821,714 and 7,643,428, with no remainder.
Since 7,643,428 cannot be divided by just 1 and 7,643,428, it is not a prime number.