GCF (HCF) of 52 and 78

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What is the Greatest Common Divisor of 52 and 78?

Answer

GCF (HCF) of 52 and 78 is
26

Common factors: 1, 2, 13, 26

26 divides both: 52 ÷ 26 = 2, 78 ÷ 26 = 3 — and 2 and 3 share no factor but 1, so no larger number divides both.

52 = 22 × 13

78 = 2 × 3 × 13

Prime5278Lowest power
22222
3—3—
13131313

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

GCF = 2 × 13 = 26

See Also

GCF Table

Number 1Number 2GCF
52631
52644
526513
52662
52671
52684
52691
52702
52711
52724
52731
52742
52751
52764
52771
527826
52791
52804
52811
52822
52831
52844
52851
52862
52871
52884
52891
52902
529113
52924

FAQ

What is the Greatest Common Divisor of 52 and 78?

GCF (HCF) of 52 and 78 is 26

How to find the GCF of 52 and 78?

You can find the GCF of 52 and 78 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 52 and 78 is 26.

What prime factors do 52 and 78 share?

The prime factorizations of 52 and 78 have 2 × 13 in common, and multiplying those shared primes gives 26 — exactly the greatest common factor.

How does the GCF reduce the fraction 52/78?

Divide the numerator and the denominator by the GCF 26: 52 ÷ 26 = 2 and 78 ÷ 26 = 3. So 52/78 in lowest terms is 2/3.