Q: Is 1,280 a Composite Number?
A: Yes, 1,280 is a composite number.
The number 1,280 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 and 1,280, with no remainder.
Since 1,280 cannot be divided by just 1 and 1,280, it is a composite number.