Take your pick;
10 and 20, 10 and 30, 10 and 40, 10 and 50, 10 and 60, 10 and 70, 10 and 80, 10 and 90, 20 and 30, 20 and 50, 20 and 70, 20 and 90, 30 and 40, 30 and 50, 30 and 70, 30 and 80, 40 and 50, 40 and 70, 40 and 90, 50 and 60, 50 and 70, 50 and 80 50 and 90, 60 and 70, 70 and 80, 70 and 90, 80 and 90.
Chat with our AI personalities
If the GCF of two numbers p and q is 7, then the GCF of p2 and q2 is 14.
Prime and relatively prime numbers all have a GCF of 1.
You need at least two numbers to find a GCF.
4 and 120
There are infinitely many pair of numbers. Take any two numbers that are coprime. Double both of them. Their GCF is 2.