Q: Is 1,280,560 a Prime Number?
A: No, 1,280,560 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 1280560 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 16,007 32,014 64,028 80,035 128,056 160,070 256,112 320,140 640,280 and 1,280,560, with no remainder.
Since 1,280,560 cannot be divided by just 1 and 1,280,560, it is not a prime number.