Q: Is 5,421,664 a Prime Number?
A: No, 5,421,664 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 5421664 can be evenly divided by 1 2 4 8 16 32 169,427 338,854 677,708 1,355,416 2,710,832 and 5,421,664, with no remainder.
Since 5,421,664 cannot be divided by just 1 and 5,421,664, it is not a prime number.