Q: Is 781,660 a Composite Number?

Why is 781,660 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 781,660 can be evenly divided by 1 2 4 5 10 11 17 19 20 22 34 38 44 55 68 76 85 95 110 121 170 187 190 209 220 242 323 340 374 380 418 484 605 646 748 836 935 1,045 1,210 1,292 1,615 1,870 2,057 2,090 2,299 2,420 3,230 3,553 3,740 4,114 4,180 4,598 6,460 7,106 8,228 9,196 10,285 11,495 14,212 17,765 20,570 22,990 35,530 39,083 41,140 45,980 71,060 78,166 156,332 195,415 390,830 and 781,660, with no remainder.

Since 781,660 cannot be divided by just 1 and 781,660, 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).