Q: Is 21,432,411 a Composite Number?

Why is 21,432,411 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 21,432,411 can be evenly divided by 1 3 7 9 11 13 21 27 33 39 61 63 77 91 99 117 143 169 183 189 231 273 297 351 427 429 507 549 671 693 793 819 1,001 1,183 1,281 1,287 1,521 1,647 1,859 2,013 2,079 2,379 2,457 3,003 3,549 3,843 3,861 4,563 4,697 5,551 5,577 6,039 7,137 8,723 9,009 10,309 10,647 11,529 13,013 14,091 16,653 16,731 18,117 21,411 26,169 27,027 30,927 31,941 39,039 42,273 49,959 50,193 61,061 72,163 78,507 92,781 113,399 117,117 126,819 149,877 183,183 216,489 235,521 278,343 340,197 351,351 549,549 649,467 793,793 1,020,591 1,648,647 1,948,401 2,381,379 3,061,773 7,144,137 and 21,432,411, with no remainder.

Since 21,432,411 cannot be divided by just 1 and 21,432,411, 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).