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You don't find the GCF and LCM of a single number, you need at least two. Ladders, trees, fireworks, rainbows... It's all the same thing, just different ways of writing the factors on the page. Find a way that works for you. To find the GCF and LCM of 30 and 42, you need to factor them.

30 42

15,2 21,2

5,3,2 7,3,2

2 x 3 x 5 = 30 and 2 x 3 x 7 = 42

To find the GCF, select the common factors.

2 x 3 = 6, the GCF.

To find the LCM, combine the factors, eliminating duplicates.

2 x 3 x 5 x 7 = 210, the LCM

Q: How do you use the ladder meathod to find the GCF and the LCM of a number?

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The division ladder is a method used to find the greatest common factor (GCF) of two numbers by listing the factors of each number. To find the GCF of 82, you would start by factoring the number 82. The factors of 82 are 1, 2, 41, and 82. Therefore, the GCF of 82 is 1.

You need at least two numbers to find a GCF. The GCF of 18 and 24 is 6.

You need at least two numbers to find a GCF.

6

GCF = Greatest Common Factor. In other words, let's say the number is 10 and, oh, 100. So, what is the number that both 10 and 100 can be divided by? 1,2,5,and 10. But since 10 is the greatest, the GCF is 10. We can do this ladder form: (100,10) 2(50, 5) 5(10,1) 2x5 is 10! if there is an extra, like if it is 9,2, but you cant divide further, IGNORE it.

Related questions

Using a division ladder haw do i find the gcf

The division ladder is a method used to find the greatest common factor (GCF) of two numbers by listing the factors of each number. To find the GCF of 82, you would start by factoring the number 82. The factors of 82 are 1, 2, 41, and 82. Therefore, the GCF of 82 is 1.

The GCF is 1.

The GCF of 18 and 57 is 3.

The prime factorization of 10 is 2 x 5. You need another number to find a GCF or LCM.

5

The GCF of 27 and 30 is 3.

5 |10,15, |_________2,3The GCF of 10 and 15 is 5.

division ladder for 12,16,28 and the gcf of all them

155,3105,2The GCF is 5.The GCF of 10 and 15 is 5.

The GCF is 3.

The GCF is 3.