GCF (HCF) of 35 and 77

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What is the Greatest Common Divisor of 35 and 77?

Answer

GCF (HCF) of 35 and 77 is
7

Common factors: 1, 7

7 divides both: 35 ÷ 7 = 5, 77 ÷ 7 = 11 — and 5 and 11 share no factor but 1, so no larger number divides both.

35 = 5 × 7

77 = 7 × 11

Prime3577Lowest power
55——
7777
11—11—

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

GCF = 7

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GCF Table

Number 1Number 2GCF
35181
35361
35391
35405
35411
35427
35431
35441
35455
35461
35471
35481
35497
35505
35521
35541
35555
35567
35571
35605
35637
35655
357035
35721
35755
35777
35847
351005
3510535
351505

FAQ

What is the Greatest Common Divisor of 35 and 77?

GCF (HCF) of 35 and 77 is 7

How to find the GCF of 35 and 77?

You can find the GCF of 35 and 77 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 35 and 77 is 7.

What prime factors do 35 and 77 share?

The prime factorizations of 35 and 77 have 7 in common, and multiplying those shared primes gives 7 — exactly the greatest common factor.

How does the GCF reduce the fraction 35/77?

Divide the numerator and the denominator by the GCF 7: 35 ÷ 7 = 5 and 77 ÷ 7 = 11. So 35/77 in lowest terms is 5/11.

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