Q: Is 25,420,100 a Composite Number?

Why is 25,420,100 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 25,420,100 can be evenly divided by 1 2 4 5 10 17 19 20 25 34 38 50 68 76 85 95 100 170 190 323 340 380 425 475 646 787 850 950 1,292 1,574 1,615 1,700 1,900 3,148 3,230 3,935 6,460 7,870 8,075 13,379 14,953 15,740 16,150 19,675 26,758 29,906 32,300 39,350 53,516 59,812 66,895 74,765 78,700 133,790 149,530 254,201 267,580 299,060 334,475 373,825 508,402 668,950 747,650 1,016,804 1,271,005 1,337,900 1,495,300 2,542,010 5,084,020 6,355,025 12,710,050 and 25,420,100, with no remainder.

Since 25,420,100 cannot be divided by just 1 and 25,420,100, 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).