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The GCF of any two co-prime numbers is 1.
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Is the HCF of two numbers ever 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.
What number goes into 14 and 15?
The two number have no common prime factors. i.e. the HCF(14, 15) = 1; they are coprime.
What goes in to 15 and 2 evenly?
1. The two numbers are coprime.
What is the hcf of 9 15?
HCF is the highest common factor of two or more numbers. HCF of 9 and 15 is 3.
Is 17 and 15 coprime numbers?
Yes.
What is the HCF of 15?
You need at least two numbers to find a GCF.
What does coprime mean?
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.
What is the HCF of 225 and 105?
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!
Are 15 and 24 relatively prime?
No, coprime numbers have no common factors other than one; 15 and 24 both have the factor 3, so they are not coprime.
What is the HCF of 15 and 5?
To find the HCF of two numbers, you have to break them down into their prime factors: 15 = 3x5 5 = 5 The next step is to identify any common factors. Both numbers have a 5 as a prime factors. Therefore the HCF of 15 and 5 is 5.
What is HCF of 15 and 39?
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.
What two numbers have the LCM of 30 and a HCF of 1?
2 and 15 3 and 10 5 and 6
