GCF (HCF) of 11 and 13

"Greatest Common Factor" Calculator

What is the Greatest Common Divisor of 11 and 13?

Answer

GCF (HCF) of 11 and 13 is

Common factors: 1

Only 1 divides both: 11 and 13 share no prime factor.

Such numbers are called coprime (relatively prime); their LCM is just the product: 11 × 13 = 143.

11 — prime

13 — prime

Prime	11	13	Lowest power
11	11	—	—
13	—	13	—

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

GCF = 1

More with these numbers

Related Calculations

GCF Table

Number 1	Number 2	GCF
11	7	1
11	12	1
11	13	1
11	14	1
11	15	1
11	16	1
11	17	1
11	18	1
11	19	1
11	20	1
11	21	1
11	22	11
11	23	1
11	27	1
11	30	1
11	31	1
11	33	11
11	39	1
11	40	1
11	41	1
11	43	1
11	44	11
11	46	1
11	47	1
11	48	1
11	51	1
11	55	11
11	56	1
11	59	1
11	60	1

FAQ

What is the Greatest Common Divisor of 11 and 13?

GCF (HCF) of 11 and 13 is 1

How to find the GCF of 11 and 13?

You can find the GCF of 11 and 13 by listing all factors of both numbers and picking the greatest common one, or by prime factorization. The GCF of 11 and 13 is 1.

What prime factors do 11 and 13 share?

11 and 13 have no prime factor in common, so the only integer that divides both of them is 1 and their GCF is 1.

How does the GCF reduce the fraction 11/13?

Divide the numerator and the denominator by the GCF 1: 11 ÷ 1 = 11 and 13 ÷ 1 = 13. So 11/13 in lowest terms is 11/13.

Are 11 and 13 coprime?

Yes, 11 and 13 are coprime (relatively prime) because their Greatest Common Factor is 1.

GCF (HCF) of 11 and 13

What is the Greatest Common Divisor of 11 and 13?

More with these numbers

Related Calculations

See Also

GCF Table

FAQ

What is the Greatest Common Divisor of 11 and 13?

How to find the GCF of 11 and 13?

What prime factors do 11 and 13 share?

How does the GCF reduce the fraction 11/13?

Are 11 and 13 coprime?

See Also

Number 1	Number 2	GCF
11	7	1
11	12	1
11	13	1
11	14	1
11	15	1
11	16	1
11	17	1
11	18	1
11	19	1
11	20	1
11	21	1
11	22	11
11	23	1
11	27	1
11	30	1
11	31	1
11	33	11
11	39	1
11	40	1
11	41	1
11	43	1
11	44	11
11	46	1
11	47	1
11	48	1
11	51	1
11	55	11
11	56	1
11	59	1
11	60	1

Number 1	Number 2	GCF
11	7	1
11	12	1
11	13	1
11	14	1
11	15	1
11	16	1
11	17	1
11	18	1
11	19	1
11	20	1
11	21	1
11	22	11
11	23	1
11	27	1
11	30	1
11	31	1
11	33	11
11	39	1
11	40	1
11	41	1
11	43	1
11	44	11
11	46	1
11	47	1
11	48	1
11	51	1
11	55	11
11	56	1
11	59	1
11	60	1

Number 1	Number 2	GCF
11	7	1
11	12	1
11	13	1
11	14	1
11	15	1
11	16	1
11	17	1
11	18	1
11	19	1
11	20	1
11	21	1
11	22	11
11	23	1
11	27	1
11	30	1
11	31	1
11	33	11
11	39	1
11	40	1
11	41	1
11	43	1
11	44	11
11	46	1
11	47	1
11	48	1
11	51	1
11	55	11
11	56	1
11	59	1
11	60	1