The GCF of any two co-prime numbers is 1.
The HCF is the largest number that both numbers can be divided by. If the HCF is 1, that would suggest that the two numbers share no prime factors. Thus, any two numbers which are coprime will have an HCF of 1. Consecutive numbers are good examples here - 15 and 16, 27 and 28, 104 and 105, all have an HCF of 1.
The two number have no common prime factors. i.e. the HCF(14, 15) = 1; they are coprime.
1. The two numbers are coprime.
HCF is the highest common factor of two or more numbers. HCF of 9 and 15 is 3.
Yes.
You need at least two numbers to find a GCF.
Two numbers are coprime if they have unity (1) as their only common factor. Example 1: 17 and 19 - any two prime numbers are also coprime. Example 2: 15 and 64 - neither is a prime, but they have no common factor except. The factorizations are 3x5 and 1x15; and 1 x 64 and 26, respectively.
It is not possible to give a sensible answer to this question. The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question!
No, coprime numbers have no common factors other than one; 15 and 24 both have the factor 3, so they are not coprime.
To find the HCF of two numbers you first have to express them as a product of their prime factors. In this case: 15 = 3x5 39 = 3x13 The next step is to identify any common prime factors. In this case, both numbers have 3 as a prime factor. Therefore the HCF of 15 and 39 is 3.
2 and 15 3 and 10 5 and 6
It is not possible to give a sensible answer to this question. The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question!