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Calculate the Greatest Common Factor or GCF of 100000

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The instructions to find the GCF of 100000 are the next:

1. Decompose all numbers into prime factors

1000002
500002
250002
125002
62502
31255
6255
1255
255
55
1

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

Prime factors of 100000=25 . 55

3. Choose the common prime factors with the lowest exponent

Common prime factors: 2 , 5

Common prime factors with the lowest exponent: 25, 55

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 = 25. 55 = 100000


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