Any of their multiples
6 numbers can go into 20; they are 1, 2, 4, 5, 10 and 20.
The numbers that go into 17 are 1 and 17, as 17 is a prime number and only divisible by 1 and itself. The numbers that go into 20 are 1, 2, 4, 5, 10, and 20, as 20 is a composite number with multiple factors.
2,4,6,8,10,12,14,16,18,20
The answer is 20C10 which is 20!/[10!(20-10)!] = 184756
The HCF of 39 and 20 is 1
The counting numbers from 1 to 20 are called natural numbers. There are larger sets that include the numbers from 1 to 20, but have other members as well. For example, the integers contain 1 through 20, but also all numbers 21, 22, 23, ... The set of real numbers includes all numbers on the number line, which includes 0 and negative numbers and irrational numbers like pi, but also includes 1 through 20. Etc.
Just 1.
1, 2, 4, 5, and 10 can go into 20.
No, but these numbers do go into 20 evenly: 1, 2, 4, 5, 10, 20.
The numbers that go into 20 are 1, 2, 4, 5, 10, and 20. These numbers are called factors of 20 because they can be multiplied together to give the original number. In mathematical terms, 20 is a composite number because it has more than two factors.
1, 2, 4, 5, 10, 20.
20: 1, 2, 5, 10, 20 21: 1, 3, 7, 21