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Calculate the Greatest Common Factor or GCF of 2440

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The instructions to find the GCF of 2440 are the next:

1. Decompose all numbers into prime factors

24402
12202
6102
3055
6161
1

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

Prime factors of 2440=23 . 5 . 61

3. Choose the common prime factors with the lowest exponent

Common prime factors: 2 , 5 , 61

Common prime factors with the lowest exponent: 23, 51, 611

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 = 23. 51. 611 = 2440


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