Q: Is 21,422,100 a Composite Number?

Why is 21,422,100 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 21,422,100 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 101 105 140 150 175 202 210 300 303 350 404 420 505 525 606 700 707 1,010 1,050 1,212 1,414 1,515 2,020 2,100 2,121 2,525 2,828 3,030 3,535 4,242 5,050 6,060 7,070 7,575 8,484 10,100 10,201 10,605 14,140 15,150 17,675 20,402 21,210 30,300 30,603 35,350 40,804 42,420 51,005 53,025 61,206 70,700 71,407 102,010 106,050 122,412 142,814 153,015 204,020 212,100 214,221 255,025 285,628 306,030 357,035 428,442 510,050 612,060 714,070 765,075 856,884 1,020,100 1,071,105 1,428,140 1,530,150 1,785,175 2,142,210 3,060,300 3,570,350 4,284,420 5,355,525 7,140,700 10,711,050 and 21,422,100, with no remainder.

Since 21,422,100 cannot be divided by just 1 and 21,422,100, 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).