GCF (HCF) of 35 and 75

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What is the Greatest Common Divisor of 35 and 75?

Answer

GCF (HCF) of 35 and 75 is
5

Common factors: 1, 5

5 divides both: 35 ÷ 5 = 7, 75 ÷ 5 = 15 — and 7 and 15 share no factor but 1, so no larger number divides both.

35 = 5 × 7

75 = 3 × 52

Prime3575Lowest power
3—3—
55525
77——

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

GCF = 5

See Also

FAQ

What is the Greatest Common Divisor of 35 and 75?

GCF (HCF) of 35 and 75 is 5

How to find the GCF of 35 and 75?

You can find the GCF of 35 and 75 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 35 and 75 is 5.

What prime factors do 35 and 75 share?

The prime factorizations of 35 and 75 have 5 in common, and multiplying those shared primes gives 5 — exactly the greatest common factor.

How does the GCF reduce the fraction 35/75?

Divide the numerator and the denominator by the GCF 5: 35 ÷ 5 = 7 and 75 ÷ 5 = 15. So 35/75 in lowest terms is 7/15.