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Calculate the Greatest Common Factor or GCF of 1690

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The instructions to find the GCF of 1690 are the next:

1. Decompose all numbers into prime factors

16902
8455
16913
1313
1

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

Prime factors of 1690=2 . 5 . 132

3. Choose the common prime factors with the lowest exponent

Common prime factors: 2 , 5 , 13

Common prime factors with the lowest exponent: 21, 51, 132

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 = 21. 51. 132 = 1690


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