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    GCF (HCF) of 5 and 55

    "Greatest Common Factor" Calculator
    Greatest Common Factor of
    and

    What is the Greatest Common Divisor of 5 and 55?

    Answer

    GCF (HCF) of 5 and 55 is
    5

    Common factors: 1, 5

    5 divides 55 (55 ÷ 5 = 11), so the GCF is the smaller number itself.

    5 — prime

    55 = 5 × 11

    Prime555Lowest power
    5555
    11—11—

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

    GCF = 5

    More with these numbers

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    What is the GCF (HCF) of 5 and 55. The GCF of 5 and 55 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
    5211
    5221
    5231
    5241
    5255
    5271
    5281
    5305
    5311
    5331
    5355
    5361
    5371
    5405
    5441
    5455
    5461
    5471
    5505
    5555
    5605
    5655
    5705
    5755
    5805
    5905
    51005
    51205
    51255
    51505

    FAQ

    What is the Greatest Common Divisor of 5 and 55?

    GCF (HCF) of 5 and 55 is 5

    How to find the GCF of 5 and 55?

    You can find the GCF of 5 and 55 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 5 and 55 is 5.

    What prime factors do 5 and 55 share?

    The prime factorizations of 5 and 55 have 5 in common, and multiplying those shared primes gives 5 — exactly the greatest common factor.

    How does the GCF reduce the fraction 5/55?

    Divide the numerator and the denominator by the GCF 5: 5 ÷ 5 = 1 and 55 ÷ 5 = 11. So 5/55 in lowest terms is 1/11.

    See Also