Q: Is 1,378,560 a Composite Number?

Why is 1,378,560 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 1,378,560 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 359 384 480 640 718 768 960 1,077 1,280 1,436 1,795 1,920 2,154 2,872 3,590 3,840 4,308 5,385 5,744 7,180 8,616 10,770 11,488 14,360 17,232 21,540 22,976 28,720 34,464 43,080 45,952 57,440 68,928 86,160 91,904 114,880 137,856 172,320 229,760 275,712 344,640 459,520 689,280 and 1,378,560, with no remainder.

Since 1,378,560 cannot be divided by just 1 and 1,378,560, 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).