Q: Is 61,643,025 a Composite Number?

Why is 61,643,025 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 61,643,025 can be evenly divided by 1 3 5 9 15 25 27 45 73 75 81 135 139 219 225 243 365 405 417 657 675 695 1,095 1,215 1,251 1,825 1,971 2,025 2,085 3,285 3,475 3,753 5,475 5,913 6,075 6,255 9,855 10,147 10,425 11,259 16,425 17,739 18,765 29,565 30,441 31,275 33,777 49,275 50,735 56,295 88,695 91,323 93,825 147,825 152,205 168,885 253,675 273,969 281,475 443,475 456,615 761,025 821,907 844,425 1,369,845 2,283,075 2,465,721 4,109,535 6,849,225 12,328,605 20,547,675 and 61,643,025, with no remainder.

Since 61,643,025 cannot be divided by just 1 and 61,643,025, 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).