Q: Is 421,280 a Composite Number?
A: Yes, 421,280 is a composite number.
The number 421,280 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 2,633 5,266 10,532 13,165 21,064 26,330 42,128 52,660 84,256 105,320 210,640 and 421,280, with no remainder.
Since 421,280 cannot be divided by just 1 and 421,280, it is a composite number.