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    GCF for 4, 6 and 20

    "Greatest Common Factor of 3 Numbers" Calculator
    Greatest Common Factor of
    ,
    and

    What's the Greatest Common Factor (GCF) of 4, 6 and 20?

    Answer

    GCF of 4, 6 and 20 is
    2

    Common factors: 1, 2

    2 divides all three: 4 ÷ 2 = 2, 6 ÷ 2 = 3, 20 ÷ 2 = 10 — and 2, 3 and 10 have no factor but 1 common to all of them, so no larger number divides all three.

    4 = 22

    6 = 2 × 3

    20 = 22 × 5

    Prime4620Lowest power
    2222222
    3—3——
    5——5—

    — = power 0: the prime is not a factor of this number, so it cannot be in the GCF.

    GCF = 2

    More with these numbers

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    https://calculat.io/en/number/greatest-common-factor-of-3-numbers/4--6--20Copy
    <a href="https://calculat.io/en/number/greatest-common-factor-of-3-numbers/4--6--20">What is the GCF of 4, 6 and 20? - Calculatio</a>Copy
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    What is the GCF of 4, 6 and 20? The GCF of 4, 6 and 20 is 2 — the largest number that divides all three with no remainder. Step-by-step solution for three numbers.
    https://calculat.io/en/number/greatest-common-factor-of-3-numbers/4--6--20/generated.jpgCopy

    GCF Table

    1st2nd3rdGCF
    4561
    4662
    4671
    4682
    4691
    46102
    46111
    46122
    46131
    46142
    46151
    46162
    46171
    46182
    46191
    46202
    46211
    46222
    46231
    46242
    46251
    46262
    46271
    46282
    46291
    46302
    46311
    46322
    46331
    46342

    FAQ

    What's the Greatest Common Factor (GCF) of 4, 6 and 20?

    GCF of 4, 6 and 20 is 2

    What prime factors do 4, 6 and 20 share?

    All three factorizations contain 2, and multiplying those shared primes gives 2 — exactly the greatest common factor.

    Can you get the GCF of 4, 6 and 20 two numbers at a time?

    Yes. The GCF of 4 and 6 is 2, and the GCF of 2 and 20 is 2 — the same answer, because the greatest common factor is associative and does not depend on the order of the three numbers.

    How does the GCF simplify the ratio 4 : 6 : 20?

    Divide every term by the GCF 2: 4 ÷ 2 = 2, 6 ÷ 2 = 3 and 20 ÷ 2 = 10. So 4 : 6 : 20 in lowest terms is 2 : 3 : 10, and no whole number other than 1 divides all three of those.

    See Also