Q: Is 2,478,440 a Prime Number?
A: No, 2,478,440 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 2478440 can be evenly divided by 1 2 4 5 8 10 20 40 61,961 123,922 247,844 309,805 495,688 619,610 1,239,220 and 2,478,440, with no remainder.
Since 2,478,440 cannot be divided by just 1 and 2,478,440, it is not a prime number.