Q: Is 217,140 a Composite Number?

Why is 217,140 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 217,140 can be evenly divided by 1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 33 35 42 44 47 55 60 66 70 77 84 94 105 110 132 140 141 154 165 188 210 220 231 235 282 308 329 330 385 420 462 470 517 564 658 660 705 770 924 940 987 1,034 1,155 1,316 1,410 1,540 1,551 1,645 1,974 2,068 2,310 2,585 2,820 3,102 3,290 3,619 3,948 4,620 4,935 5,170 6,204 6,580 7,238 7,755 9,870 10,340 10,857 14,476 15,510 18,095 19,740 21,714 31,020 36,190 43,428 54,285 72,380 108,570 and 217,140, with no remainder.

Since 217,140 cannot be divided by just 1 and 217,140, 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).