1 2 4 5 10 and 20. Divide 60 larger number by 20 smaller number. My Math Resources Gcf And Lcm Math Videos Math Math Resources 1 2 5 10 25 50. . Get the factors for another two numbers here. For smaller numbers you can simply look at the factors or multiples for each number and find the greatest common multiple of them. Therefore GCF of numbers 20 30 50 is 10. Helpful 1 Not Helpful 0 Add a Comment. The common factors of 20 50 and 120 are 1 2 5 and 10. As you can see when you list out the factors of each number 2 is the greatest number that 20 24 and 30 divides into. GCF of two or more numbers Calculator allows you to quickly calculate the GCF of 30 6 20 43 ie. We will now calculate the prime factors of 30 and 10 than find the greatest common factor greatest common divisor gcd of the numbers by matching the biggest common factor of 30 and 10. Greatest common factor GCF of 30 6 20 43 is 1. W...