Q: Is 2,178,018 a Prime Number?
A: No, 2,178,018 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 2178018 can be evenly divided by 1 2 3 6 9 18 121,001 242,002 363,003 726,006 1,089,009 and 2,178,018, with no remainder.
Since 2,178,018 cannot be divided by just 1 and 2,178,018, it is not a prime number.