When the two numbers are relatively prime (their GCF is 1)
If one of the numbers is a multiple of the other, the smaller number is the GCF. If the two numbers are prime numbers, the GCF is 1. If the numbers are consecutive, the GCF is 1. If the numbers are consecutive even numbers, the GCF is 2.
Two numbers have a GCF. Two sets of two numbers may have the same GCF.
To find a pair of numbers with a given GCF, take the GCF number and double it. The pair of numbers is the GCF, and two times the GCF. For instance, two numbers with a GCF of 3 are 3 and 6.
You need at least two numbers to find a GCF.
Yes, it is true.
When that number is a factor of the greater one.
only if they are equal
Any consecutive even numbers have a GCF of 2.
The product of the GCF and LCM of a pair of numbers is equal to the product of the numbers.
The two numbers having GCF equal to 5 can be 5 and 10.
The GCF of two numbers multiplied by their LCM will equal the product of the original numbers. If you know the GCF, divide it into the product of the two. The result will be the LCM. If the GCF of two numbers is 1, the LCM is their product.
When one of the numbers is a factor of the other.
That happens when one of the numbers is a multiple of the other.
No. If the numbers are different, their GCF and LCM will be different as well.
Since the product of two numbers is equal to the product of their GCF and LCM, the GCF of two numbers is equal to their product divided by their LCM and their LCM is equal to their product divided by their GCF.