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Calculate the Greatest Common Factor or GCF of 2185

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The instructions to find the GCF of 2185 are the next:

1. Decompose all numbers into prime factors

21855
43719
2323
1

2. Write all numbers as the product of its prime factors

Prime factors of 2185=5 . 19 . 23

3. Choose the common prime factors with the lowest exponent

Common prime factors: 5 , 19 , 23

Common prime factors with the lowest exponent: 51, 191, 231

4. Calculate the Greatest Common Factor or GCF

Remember, to find the GCF of several numbers you must multiply the common prime factors with the lowest exponent.

GCF = 51. 191. 231 = 2185


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