Q: Is 428,220 a Composite Number?

Why is 428,220 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 428,220 can be evenly divided by 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 61 65 78 90 108 117 122 130 135 156 180 183 195 234 244 260 270 305 351 366 390 468 540 549 585 610 702 732 780 793 915 1,098 1,170 1,220 1,404 1,586 1,647 1,755 1,830 2,196 2,340 2,379 2,745 3,172 3,294 3,510 3,660 3,965 4,758 5,490 6,588 7,020 7,137 7,930 8,235 9,516 10,980 11,895 14,274 15,860 16,470 21,411 23,790 28,548 32,940 35,685 42,822 47,580 71,370 85,644 107,055 142,740 214,110 and 428,220, with no remainder.

Since 428,220 cannot be divided by just 1 and 428,220, 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).