First: how many numbers there are. break it down like..............
45 15
/\ /\
9 5 5 3
/\ 5 stays since it's prime, same as 3
3 3
Then: do this......
45: 3x3x5
15: 5x3
circle 3's like, the bottom 3 to 1 top 3, and 1 bottom 5 and 1 top 5 until it's............
3x5, so the GCF of 45 and 15 is 15
A simple, but somewhat slow method, is Euclid's method.
For example, to find GCF 3, 12, 18
6 15 18: min = 6
6 9 12: min = 6
6 3 6: min = 3
3 3 3. All are equal so GCF = 3.
Example: 30 and 42
Step 1: Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Step 2: Select the common factors.
2 x 3 = 6, the GCF
Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the common factors.
2 x 3 = 6, the GCF
Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the common factors.
2 x 3 = 6, the GCF.
Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the common factors.
2 x 3 = 6, the GCF
Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the common factors.
2 x 3 = 6, the GCF
Finding the prime factorization.
greatest common factor by using intersection of sets method,prime factorization method and continous division method of 72,96 and 200
The GCF of consecutive integers is 1.
It doesn't matter what method you use, you still need at least two numbers to find something in common.
The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself. So you do not need to use the division ladder or any other method!
The factors of 49 are:1, 7, 49The factors of 63 are:1, 3, 7, 9, 21, 63The Greatest Common Factor:GCF = 7
Simplification using the greatest common factor does.Simplification using the greatest common factor does.Simplification using the greatest common factor does.Simplification using the greatest common factor does.
It is: 2
greatest common factor by using intersection of sets method,prime factorization method and continous division method of 72,96 and 200
The GCF of consecutive integers is 1.
51 3,17 81 9,9 3,3,9 3,3,3,3 The GCF is 3.
It doesn't matter what method you use, you still need at least two numbers to find something in common.
The greatest common factor of 10y plus 15 is 5.
You need at least two numbers to find a GCF no matter what method you use.
The greatest common prime factor of 10 and 20 is 5.
The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself. So you do not need to use the division ladder or any other method!
5
the greatest com man factor is 33