A Prime number only has two factors: 1 and the number itself. Since every prime number has 1 as a factor, it's a common factor. Since the only other factors are the numbers you're comparing, they won't be the same number. That makes 1 the GCF.
One exception: When it's the same number. The GCF of 13 and 13 is 13.
Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the common factors.
2 x 3 = 6, the GCF
Because any set of non-zero integers has a GCF. If it exists, it can be determined.
The GCF of any two prime numbers s 1.
The GCF is 1.
Yes, the greatest common factor of two different prime numbers is always 1
If you construct them correctly, factor trees always work to determine the prime factorization of a number. Once you compare the prime factorizations of two or more numbers, it is relatively easy to find the greatest common factor of them from there.
The greatest common denominator of any set of denominators is infinite.
Always even.
No, but it's always an even number.
Yes, the least common multiple of two numbers is always divisible by those numbers' greatest common factor.
You must have at least two whole numbers to determine a greatest common factor.
You must have at least two whole numbers to determine a greatest common factor.
You must have at least two whole numbers to determine a greatest common factor.
You must have at least two whole numbers to determine a greatest common factor.
You must have at least two whole numbers to determine a greatest common factor.
You must have at least two whole numbers to determine a greatest common factor.
No.
Yes, the greatest common factor of two different prime numbers is always 1
This cannot be properly answered. You must have at least two whole numbers to determine a greatest common factor.
If you construct them correctly, factor trees always work to determine the prime factorization of a number. Once you compare the prime factorizations of two or more numbers, it is relatively easy to find the greatest common factor of them from there.
Yes.