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Calculate the Greatest Common Factor or GCF of 1131

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The instructions to find the GCF of 1131 are the next:

1. Decompose all numbers into prime factors

11313
37713
2929
1

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

Prime factors of 1131=3 . 13 . 29

3. Choose the common prime factors with the lowest exponent

Common prime factors: 3 , 13 , 29

Common prime factors with the lowest exponent: 31, 131, 291

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 = 31. 131. 291 = 1131


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