20 is a factor of 40, among many other numbers.
The factor numbers are: 4 x 5 2 x 10 1 x 20
Two numbers whose greatest common factor (GCF) is 20 are any pair of numbers that are multiples of 20. For example, 20 and 40 have a GCF of 20 because 20 is a factor of both numbers. Another pair could be 60 and 80, as 20 is also a factor of both of these numbers.
1,2,4,5,10,20
It would be 20. After dividing both numbers by 20, you get 1 and 6. And these two numbers cannot be divided by any other numbers except by 1.
A common factor is a factor both numbers can be evenly divided by.In this case it is 20.20/20 = 180/20 = 4
20 and 30 are two numbers that have the greatest common factor of 10.
5 is a prime factor of both numbers.
Common factor
A factor is the two numbers you multiply for example: 20x20=400 Both 20 and 20 are factors. The 400 is a product.
The greatest common factor for both the numbers is 20.
There can be only one greatest common factor for any set of numbers. GCF(40, 20) = 20.