Q: Is 18,388,040 a Composite Number?

Why is 18,388,040 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 18,388,040 can be evenly divided by 1 2 4 5 8 10 11 20 22 23 40 44 46 55 79 88 92 110 115 158 184 220 230 253 316 395 440 460 506 529 632 790 869 920 1,012 1,058 1,265 1,580 1,738 1,817 2,024 2,116 2,530 2,645 3,160 3,476 3,634 4,232 4,345 5,060 5,290 5,819 6,952 7,268 8,690 9,085 10,120 10,580 11,638 14,536 17,380 18,170 19,987 21,160 23,276 29,095 34,760 36,340 39,974 41,791 46,552 58,190 72,680 79,948 83,582 99,935 116,380 159,896 167,164 199,870 208,955 232,760 334,328 399,740 417,910 459,701 799,480 835,820 919,402 1,671,640 1,838,804 2,298,505 3,677,608 4,597,010 9,194,020 and 18,388,040, with no remainder.

Since 18,388,040 cannot be divided by just 1 and 18,388,040, 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).