Q: Is 212,722,125 a Composite Number?

Why is 212,722,125 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 212,722,125 can be evenly divided by 1 3 5 7 11 15 21 25 33 35 53 55 75 77 105 125 139 159 165 175 231 265 275 371 375 385 417 525 583 695 795 825 875 973 1,113 1,155 1,325 1,375 1,529 1,749 1,855 1,925 2,085 2,625 2,915 2,919 3,475 3,975 4,081 4,125 4,587 4,865 5,565 5,775 6,625 7,367 7,645 8,745 9,275 9,625 10,425 10,703 12,243 14,575 14,595 17,375 19,875 20,405 22,101 22,935 24,325 27,825 28,875 32,109 36,835 38,225 43,725 46,375 51,569 52,125 53,515 61,215 72,875 72,975 81,037 102,025 110,505 114,675 121,625 139,125 154,707 160,545 184,175 191,125 218,625 243,111 257,845 267,575 306,075 364,875 405,185 510,125 552,525 567,259 573,375 773,535 802,725 920,875 1,215,555 1,289,225 1,337,875 1,530,375 1,701,777 2,025,925 2,762,625 2,836,295 3,867,675 4,013,625 6,077,775 6,446,125 8,508,885 10,129,625 14,181,475 19,338,375 30,388,875 42,544,425 70,907,375 and 212,722,125, with no remainder.

Since 212,722,125 cannot be divided by just 1 and 212,722,125, 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).