The factor numbers are:
4 x 5
2 x 10
1 x 20
20 is a factor of 40, among many other numbers.
Well, honey, the greatest common factor (GCF) of two numbers is the largest number that divides both of them. So, if you want a GCF of 20, you can pick any two numbers that have 20 as a factor, like 20 and 40 or 60 and 100. Just make sure you're not pulling my leg with those numbers, okay?
1,2,4,5,10,20
The factor pairs of 20 are pairs of numbers that can be multiplied together to give 20. The factor pairs of 20 are (1, 20), (2, 10), and (4, 5). These pairs represent all the possible combinations of numbers that can be multiplied to equal 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
1, 2, 4, 5, 10, 20
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.
There can be only one greatest common factor for any set of numbers. GCF(40, 20) = 20.
The greatest common factor for both the numbers is 20.