Q: Is 5,478,278 a Prime Number?
A: No, 5,478,278 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 5478278 can be evenly divided by 1 2 13 23 26 46 299 598 9,161 18,322 119,093 210,703 238,186 421,406 2,739,139 and 5,478,278, with no remainder.
Since 5,478,278 cannot be divided by just 1 and 5,478,278, it is not a prime number.