Q: Is 306,720 a Composite Number?

Why is 306,720 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 306,720 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 71 72 80 90 96 108 120 135 142 144 160 180 213 216 240 270 284 288 355 360 426 432 480 540 568 639 710 720 852 864 1,065 1,080 1,136 1,278 1,420 1,440 1,704 1,917 2,130 2,160 2,272 2,556 2,840 3,195 3,408 3,834 4,260 4,320 5,112 5,680 6,390 6,816 7,668 8,520 9,585 10,224 11,360 12,780 15,336 17,040 19,170 20,448 25,560 30,672 34,080 38,340 51,120 61,344 76,680 102,240 153,360 and 306,720, with no remainder.

Since 306,720 cannot be divided by just 1 and 306,720, 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).