Q: Is 15,371,720 a Composite Number?

Why is 15,371,720 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 15,371,720 can be evenly divided by 1 2 4 5 7 8 10 13 14 20 26 28 35 40 41 52 56 65 70 82 91 103 104 130 140 164 182 205 206 260 280 287 328 364 410 412 455 515 520 533 574 721 728 820 824 910 1,030 1,066 1,148 1,339 1,435 1,442 1,640 1,820 2,060 2,132 2,296 2,665 2,678 2,870 2,884 3,605 3,640 3,731 4,120 4,223 4,264 5,330 5,356 5,740 5,768 6,695 7,210 7,462 8,446 9,373 10,660 10,712 11,480 13,390 14,420 14,924 16,892 18,655 18,746 21,115 21,320 26,780 28,840 29,561 29,848 33,784 37,310 37,492 42,230 46,865 53,560 54,899 59,122 74,620 74,984 84,460 93,730 109,798 118,244 147,805 149,240 168,920 187,460 219,596 236,488 274,495 295,610 374,920 384,293 439,192 548,990 591,220 768,586 1,097,980 1,182,440 1,537,172 1,921,465 2,195,960 3,074,344 3,842,930 7,685,860 and 15,371,720, with no remainder.

Since 15,371,720 cannot be divided by just 1 and 15,371,720, 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).