Q: Is 1,278,460 a Prime Number?
A: No, 1,278,460 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 1278460 can be evenly divided by 1 2 4 5 10 20 97 194 388 485 659 970 1,318 1,940 2,636 3,295 6,590 13,180 63,923 127,846 255,692 319,615 639,230 and 1,278,460, with no remainder.
Since 1,278,460 cannot be divided by just 1 and 1,278,460, it is not a prime number.