Q: Is 28,171,320 a Composite Number?

Why is 28,171,320 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 28,171,320 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 59 60 69 92 115 118 120 138 173 177 184 230 236 276 295 345 346 354 460 472 519 552 590 690 692 708 865 885 920 1,038 1,180 1,357 1,380 1,384 1,416 1,730 1,770 2,076 2,360 2,595 2,714 2,760 3,460 3,540 3,979 4,071 4,152 5,190 5,428 6,785 6,920 7,080 7,958 8,142 10,207 10,380 10,856 11,937 13,570 15,916 16,284 19,895 20,355 20,414 20,760 23,874 27,140 30,621 31,832 32,568 39,790 40,710 40,828 47,748 51,035 54,280 59,685 61,242 79,580 81,420 81,656 95,496 102,070 119,370 122,484 153,105 159,160 162,840 204,140 234,761 238,740 244,968 306,210 408,280 469,522 477,480 612,420 704,283 939,044 1,173,805 1,224,840 1,408,566 1,878,088 2,347,610 2,817,132 3,521,415 4,695,220 5,634,264 7,042,830 9,390,440 14,085,660 and 28,171,320, with no remainder.

Since 28,171,320 cannot be divided by just 1 and 28,171,320, 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).