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    GCF (HCF) of 80 and 115

    "Greatest Common Factor" Calculator
    Greatest Common Factor of
    and

    What is the Greatest Common Divisor of 80 and 115?

    Answer

    GCF (HCF) of 80 and 115 is
    5

    Common factors: 1, 5

    5 divides both: 80 ÷ 5 = 16, 115 ÷ 5 = 23 — and 16 and 23 share no factor but 1, so no larger number divides both.

    80 = 24 × 5

    115 = 5 × 23

    Prime80115Lowest power
    224——
    5555
    23—23—

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

    GCF = 5

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    What is the GCF (HCF) of 80 and 115. The GCF of 80 and 115 is 5 — 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
    802020
    80844
    809010
    809616
    8010020
    8011010
    8011216
    801155
    8012040
    801255
    8014020
    8014416
    801555
    801655
    8018020
    801855
    8019010
    8020040
    802155
    802255
    802655
    802755
    802855
    8030020
    803055
    8031010
    803255
    8033010
    803555
    8036040

    FAQ

    What is the Greatest Common Divisor of 80 and 115?

    GCF (HCF) of 80 and 115 is 5

    How to find the GCF of 80 and 115?

    You can find the GCF of 80 and 115 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 80 and 115 is 5.

    What prime factors do 80 and 115 share?

    The prime factorizations of 80 and 115 have 5 in common, and multiplying those shared primes gives 5 — exactly the greatest common factor.

    How does the GCF reduce the fraction 80/115?

    Divide the numerator and the denominator by the GCF 5: 80 ÷ 5 = 16 and 115 ÷ 5 = 23. So 80/115 in lowest terms is 16/23.

    See Also