There are an infinite number of pairs that share that characteristic.
In general, any two consecutive multiples of 3 ought to do it.
Here are a few pairs:
3 and 6
6 and 9
9 and 12
12 and 15
15 and 18
792 and 795
Chat with our AI personalities
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.
3 and 45 9 and 15
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.
You need at least two numbers to find a GCF.