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    GCF (HCF) of 55 and 88

    "Greatest Common Factor" Calculator
    Greatest Common Factor of
    and

    What is the Greatest Common Divisor of 55 and 88?

    Answer

    GCF (HCF) of 55 and 88 is
    11

    Common factors: 1, 11

    11 divides both: 55 ÷ 11 = 5, 88 ÷ 11 = 8 — and 5 and 8 share no factor but 1, so no larger number divides both.

    55 = 5 × 11

    88 = 23 × 11

    Prime5588Lowest power
    2—23—
    55——
    11111111

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

    GCF = 11

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    What is the GCF (HCF) of 55 and 88. The GCF of 55 and 88 is 11 — the biggest number that can divide both integers. Step-by-step GCF (GCD) calculation by factoring.
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    GCF Table

    Number 1Number 2GCF
    55731
    55741
    55755
    55761
    557711
    55781
    55791
    55805
    55811
    55821
    55831
    55841
    55855
    55861
    55871
    558811
    55891
    55905
    55911
    55921
    55931
    55941
    55955
    55961
    55971
    55981
    559911
    551005
    551011
    551021

    FAQ

    What is the Greatest Common Divisor of 55 and 88?

    GCF (HCF) of 55 and 88 is 11

    How to find the GCF of 55 and 88?

    You can find the GCF of 55 and 88 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 55 and 88 is 11.

    What prime factors do 55 and 88 share?

    The prime factorizations of 55 and 88 have 11 in common, and multiplying those shared primes gives 11 — exactly the greatest common factor.

    How does the GCF reduce the fraction 55/88?

    Divide the numerator and the denominator by the GCF 11: 55 ÷ 11 = 5 and 88 ÷ 11 = 8. So 55/88 in lowest terms is 5/8.

    See Also