Q: Is 20,118,420 a Composite Number?

Why is 20,118,420 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 20,118,420 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 49 60 63 70 84 90 98 105 126 140 147 180 196 210 245 252 294 315 420 441 490 588 630 735 882 980 1,260 1,470 1,764 2,205 2,281 2,940 4,410 4,562 6,843 8,820 9,124 11,405 13,686 15,967 20,529 22,810 27,372 31,934 34,215 41,058 45,620 47,901 63,868 68,430 79,835 82,116 95,802 102,645 111,769 136,860 143,703 159,670 191,604 205,290 223,538 239,505 287,406 319,340 335,307 410,580 447,076 479,010 558,845 574,812 670,614 718,515 958,020 1,005,921 1,117,690 1,341,228 1,437,030 1,676,535 2,011,842 2,235,380 2,874,060 3,353,070 4,023,684 5,029,605 6,706,140 10,059,210 and 20,118,420, with no remainder.

Since 20,118,420 cannot be divided by just 1 and 20,118,420, 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).