GCF (HCF) of 77 and 56

"Greatest Common Factor" Calculator

What is the Greatest Common Divisor of 77 and 56?

Answer

GCF (HCF) of 77 and 56 is

Common factors: 1, 7

7 divides both: 77 ÷ 7 = 11, 56 ÷ 7 = 8 — and 11 and 8 share no factor but 1, so no larger number divides both.

77 = 7 × 11

56 = 2³ × 7

Prime	77	56	Lowest power
2	—	2³	—
7	7	7	7
11	11	—	—

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

GCF = 7

More with these numbers

Related Calculations

GCF Table

Number 1	Number 2	GCF
77	41	1
77	42	7
77	43	1
77	44	11
77	45	1
77	46	1
77	47	1
77	48	1
77	49	7
77	50	1
77	51	1
77	52	1
77	53	1
77	54	1
77	55	11
77	56	7
77	57	1
77	58	1
77	59	1
77	60	1
77	61	1
77	62	1
77	63	7
77	64	1
77	65	1
77	66	11
77	67	1
77	68	1
77	69	1
77	70	7

FAQ

What is the Greatest Common Divisor of 77 and 56?

GCF (HCF) of 77 and 56 is 7

How to find the GCF of 77 and 56?

You can find the GCF of 77 and 56 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 77 and 56 is 7.

What prime factors do 77 and 56 share?

The prime factorizations of 77 and 56 have 7 in common, and multiplying those shared primes gives 7 — exactly the greatest common factor.

How does the GCF reduce the fraction 77/56?

Divide the numerator and the denominator by the GCF 7: 77 ÷ 7 = 11 and 56 ÷ 7 = 8. So 77/56 in lowest terms is 11/8.

GCF (HCF) of 77 and 56

What is the Greatest Common Divisor of 77 and 56?

More with these numbers

Related Calculations

See Also

GCF Table

FAQ

What is the Greatest Common Divisor of 77 and 56?

How to find the GCF of 77 and 56?

What prime factors do 77 and 56 share?

How does the GCF reduce the fraction 77/56?

See Also

Number 1	Number 2	GCF
77	41	1
77	42	7
77	43	1
77	44	11
77	45	1
77	46	1
77	47	1
77	48	1
77	49	7
77	50	1
77	51	1
77	52	1
77	53	1
77	54	1
77	55	11
77	56	7
77	57	1
77	58	1
77	59	1
77	60	1
77	61	1
77	62	1
77	63	7
77	64	1
77	65	1
77	66	11
77	67	1
77	68	1
77	69	1
77	70	7

Number 1	Number 2	GCF
77	41	1
77	42	7
77	43	1
77	44	11
77	45	1
77	46	1
77	47	1
77	48	1
77	49	7
77	50	1
77	51	1
77	52	1
77	53	1
77	54	1
77	55	11
77	56	7
77	57	1
77	58	1
77	59	1
77	60	1
77	61	1
77	62	1
77	63	7
77	64	1
77	65	1
77	66	11
77	67	1
77	68	1
77	69	1
77	70	7

Number 1	Number 2	GCF
77	41	1
77	42	7
77	43	1
77	44	11
77	45	1
77	46	1
77	47	1
77	48	1
77	49	7
77	50	1
77	51	1
77	52	1
77	53	1
77	54	1
77	55	11
77	56	7
77	57	1
77	58	1
77	59	1
77	60	1
77	61	1
77	62	1
77	63	7
77	64	1
77	65	1
77	66	11
77	67	1
77	68	1
77	69	1
77	70	7