Q: Is 1,247,220 a Composite Number?

Why is 1,247,220 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 1,247,220 can be evenly divided by 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 41 45 52 60 65 78 82 90 117 123 130 156 164 169 180 195 205 234 246 260 338 369 390 410 468 492 507 533 585 615 676 738 780 820 845 1,014 1,066 1,170 1,230 1,476 1,521 1,599 1,690 1,845 2,028 2,132 2,340 2,460 2,535 2,665 3,042 3,198 3,380 3,690 4,797 5,070 5,330 6,084 6,396 6,929 7,380 7,605 7,995 9,594 10,140 10,660 13,858 15,210 15,990 19,188 20,787 23,985 27,716 30,420 31,980 34,645 41,574 47,970 62,361 69,290 83,148 95,940 103,935 124,722 138,580 207,870 249,444 311,805 415,740 623,610 and 1,247,220, with no remainder.

Since 1,247,220 cannot be divided by just 1 and 1,247,220, 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).