Q: Is 21,234,360 a Composite Number?

Why is 21,234,360 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 21,234,360 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 17 20 21 24 28 30 34 35 40 42 51 56 60 68 70 84 85 102 105 119 120 136 140 168 170 204 210 238 255 280 340 357 408 420 476 510 595 680 714 840 952 1,020 1,190 1,428 1,487 1,785 2,040 2,380 2,856 2,974 3,570 4,461 4,760 5,948 7,140 7,435 8,922 10,409 11,896 14,280 14,870 17,844 20,818 22,305 25,279 29,740 31,227 35,688 41,636 44,610 50,558 52,045 59,480 62,454 75,837 83,272 89,220 101,116 104,090 124,908 126,395 151,674 156,135 176,953 178,440 202,232 208,180 249,816 252,790 303,348 312,270 353,906 379,185 416,360 505,580 530,859 606,696 624,540 707,812 758,370 884,765 1,011,160 1,061,718 1,249,080 1,415,624 1,516,740 1,769,530 2,123,436 2,654,295 3,033,480 3,539,060 4,246,872 5,308,590 7,078,120 10,617,180 and 21,234,360, with no remainder.

Since 21,234,360 cannot be divided by just 1 and 21,234,360, 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).