Q: Is 105,013,125 a Composite Number?

Why is 105,013,125 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 105,013,125 can be evenly divided by 1 3 5 7 9 15 21 25 27 35 45 49 63 75 105 125 127 135 147 175 189 225 245 315 375 381 441 525 625 635 675 735 875 889 945 1,125 1,143 1,225 1,323 1,575 1,875 1,905 2,205 2,625 2,667 3,175 3,375 3,429 3,675 4,375 4,445 4,725 5,625 5,715 6,125 6,223 6,615 7,875 8,001 9,525 11,025 13,125 13,335 15,875 16,875 17,145 18,375 18,669 22,225 23,625 24,003 28,575 30,625 31,115 33,075 39,375 40,005 47,625 55,125 56,007 66,675 79,375 85,725 91,875 93,345 111,125 118,125 120,015 142,875 155,575 165,375 168,021 200,025 238,125 275,625 280,035 333,375 428,625 466,725 555,625 600,075 714,375 777,875 826,875 840,105 1,000,125 1,400,175 1,666,875 2,143,125 2,333,625 3,000,375 3,889,375 4,200,525 5,000,625 7,000,875 11,668,125 15,001,875 21,002,625 35,004,375 and 105,013,125, with no remainder.

Since 105,013,125 cannot be divided by just 1 and 105,013,125, 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).