Q: Is 1,223,280 a Composite Number?

Why is 1,223,280 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 1,223,280 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 1,699 3,398 5,097 6,796 8,495 10,194 13,592 15,291 16,990 20,388 25,485 27,184 30,582 33,980 40,776 50,970 61,164 67,960 76,455 81,552 101,940 122,328 135,920 152,910 203,880 244,656 305,820 407,760 611,640 and 1,223,280, with no remainder.

Since 1,223,280 cannot be divided by just 1 and 1,223,280, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).