Q: Is 21,283,360 a Composite Number?

Why is 21,283,360 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 21,283,360 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 31 32 35 40 56 62 70 80 112 124 140 155 160 217 224 248 280 310 434 496 560 613 620 868 992 1,085 1,120 1,226 1,240 1,736 2,170 2,452 2,480 3,065 3,472 4,291 4,340 4,904 4,960 6,130 6,944 8,582 8,680 9,808 12,260 17,164 17,360 19,003 19,616 21,455 24,520 34,328 34,720 38,006 42,910 49,040 68,656 76,012 85,820 95,015 98,080 133,021 137,312 152,024 171,640 190,030 266,042 304,048 343,280 380,060 532,084 608,096 665,105 686,560 760,120 1,064,168 1,330,210 1,520,240 2,128,336 2,660,420 3,040,480 4,256,672 5,320,840 10,641,680 and 21,283,360, with no remainder.

Since 21,283,360 cannot be divided by just 1 and 21,283,360, 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).