Q: Is 20,861,400 a Composite Number?

Why is 20,861,400 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 20,861,400 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 25 28 30 35 40 42 50 56 60 70 75 84 100 105 120 140 150 168 175 200 210 280 300 350 420 525 600 700 840 1,050 1,400 2,100 4,200 4,967 9,934 14,901 19,868 24,835 29,802 34,769 39,736 49,670 59,604 69,538 74,505 99,340 104,307 119,208 124,175 139,076 149,010 173,845 198,680 208,614 248,350 278,152 298,020 347,690 372,525 417,228 496,700 521,535 596,040 695,380 745,050 834,456 869,225 993,400 1,043,070 1,390,760 1,490,100 1,738,450 2,086,140 2,607,675 2,980,200 3,476,900 4,172,280 5,215,350 6,953,800 10,430,700 and 20,861,400, with no remainder.

Since 20,861,400 cannot be divided by just 1 and 20,861,400, 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).