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20 February, 02:44

What is the GFC of 40 and 60

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  1. 20 February, 03:25
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    GCF: 20

    Step-by-step explanation:

    The thing you want to do is factor both numbers down to their lowest primes.

    40:2 * 2 * 2 * 5

    60:2 * 2 * 5 * 3

    Now underline what is in both sets of primes. I'll bold them. The number that is bolded comes from 2 * 2 * 5 which is 20

    The highest common factor is 20
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