Q: Is 28,420,470 a Composite Number?

Why is 28,420,470 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 28,420,470 can be evenly divided by 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 81 90 117 130 135 162 195 234 270 351 390 405 585 702 810 1,053 1,170 1,755 2,106 2,699 3,510 5,265 5,398 8,097 10,530 13,495 16,194 24,291 26,990 35,087 40,485 48,582 70,174 72,873 80,970 105,261 121,455 145,746 175,435 210,522 218,619 242,910 315,783 350,870 364,365 437,238 526,305 631,566 728,730 947,349 1,052,610 1,093,095 1,578,915 1,894,698 2,186,190 2,842,047 3,157,830 4,736,745 5,684,094 9,473,490 14,210,235 and 28,420,470, with no remainder.

Since 28,420,470 cannot be divided by just 1 and 28,420,470, 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).