Q: Is 2,678,440 a Prime Number?
A: No, 2,678,440 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 2678440 can be evenly divided by 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1,160 2,309 4,618 9,236 11,545 18,472 23,090 46,180 66,961 92,360 133,922 267,844 334,805 535,688 669,610 1,339,220 and 2,678,440, with no remainder.
Since 2,678,440 cannot be divided by just 1 and 2,678,440, it is not a prime number.