Q: Is 1,243,504 a Prime Number?
A: No, 1,243,504 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 1243504 can be evenly divided by 1 2 4 8 16 77,719 155,438 310,876 621,752 and 1,243,504, with no remainder.
Since 1,243,504 cannot be divided by just 1 and 1,243,504, it is not a prime number.