Q: Is 1,242,720 a Composite Number?

Why is 1,242,720 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 1,242,720 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 863 1,440 1,726 2,589 3,452 4,315 5,178 6,904 7,767 8,630 10,356 12,945 13,808 15,534 17,260 20,712 25,890 27,616 31,068 34,520 38,835 41,424 51,780 62,136 69,040 77,670 82,848 103,560 124,272 138,080 155,340 207,120 248,544 310,680 414,240 621,360 and 1,242,720, with no remainder.

Since 1,242,720 cannot be divided by just 1 and 1,242,720, 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).