Lascano516 Lascano516

18-09-2015
Mathematics

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What is the greatest common factor for 21,24,27

Respuesta :

SchwarzschildRadius SchwarzschildRadius

18-09-2015

So,

To find the GCF, you have to factor all of the numbers.

21 --> 3 * 7
24 --> 2 * 2 * 2 * 3
27 --> 3 * 3 * 3

Next, you find all the factors that they have in common.

They all have at least one 3, so that means that 3 is the greatest common factor of 21, 24, and 27.

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