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GCF of 408/28, 821/530

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023

Use our free GCF of Fractions Calculator tool to compute the GCF of 408/28, 821/530 i.e 1/7420 easily. The following is the detailed procedure to determine the greatest common factor of fractions 408/28, 821/530.

Enter two or more fractions separated by "commas"

Ex: 2/3, 5/7 or 3/5, 5/9, 7/3

GCF of:

What is the GCF of 408/28,821/530?

Given fractions are 408/28,821/530

To find the GCF of fractions, we have to find the GCF of numerator numbers and LCM of denominator numbers. Its formula is given by

GCF of Fraction = Greatest Common Factor of Numerator/Least Common Multiple of Denominators

In the fractions 408/28,821/530, numerators are 408,821

Denominators are 28,530

The GCF of 408,821 is 1 .

LCM of 28,530 is 7420.

The greatest common factor of 408/28,821/530 = [GCF of 408,821]/[LCM of 28,530]= 1/7420

Therefore, the GCF of 408/28,821/530 is 1/7420.

Greatest Common Factor of 408,821

To find the highest common factor of 408,821, we have to find the factors of both numbers and list the highest common factor.

The factors of 408 are 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408

The factors of 821 are 1, 821

The HCF of 408,821 is 1.

Lets's calculate GCF of 408,821

Greatest Common Factor (GCF) of 408,821 By Common Division

∴ So GCF of numbers is 1 because of no common factors present between them.

Greatest Common Factor of 408,821 By Matching Biggest Common Factor Method

Greatest Common Factor of 408,821 By Matching Biggest Common Factor Method

Now, list down the factors of 408

:

1,2,3,4,6,8,12,17,24,34,51,68,102,136,204,408

Now, list down the factors of 821

:

1,821

Greatest Common Factor

We found the factors 408,821 . The biggest common factor number is the GCF number.
So the greatest common factor 408,821 is 1.

Lets's calculate LCM of 28,530

Lowest Common Multiple of 28,530 using Common Division

2 28, 530
14, 265

∴ So the LCM of the given numbers is 2 x 14 x 265 = 7420

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/7420

Therefore, the GCF of Fractions 408/28,821/530 is 1/7420

Least Common Multiple of 28,530 with GCF Formula

Least Common Multiple of 28,530 with GCF Formula

The formula of LCM is LCM(a1,a2,a3....,an) = ( a1 × a2 × a3 × .... × an) / GCF(a1,a2,a3....,an) x common factors(if more than 2 numbers have common factors).

We need to calculate greatest common factor of 28,530 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(28,530) = 2

common factors(in case of two or more numbers have common factors) = 1

GCF(28,530) x common factors =2 x 1 = 2

LCM(28,530) = ( 28 × 530 ) / 2

LCM(28,530) = 14840 / 2

LCM(28,530) = 7420


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FAQs on GCF of Fractions of 408/28, 821/530

1. What is the HCF of 408,821?

The HCF of 408,821 is 1

2. What is the GCF of a fraction?

The GCF of a fraction is defined as the greatest fraction that divides exactly into 2 or more fractions.

3. How to find GCF in Fractions?

Answer: GCF of fractions can be found using the simple formula GCF of Fractions = GCF of Numerators/LCM of Denominators.

4. What is the GCF of Fractions for 408/28, 821/530?

Answer: GCF of Numerators as per given numbers 408/28, 821/530 is

GCF of Numerators i.e. for 408,821 is 1

LCM of denominators i.e. for 28,530 is 7420.

Thus, GCF of Fractions is 1/7420.Finally, GCF of Fractions for 408/28, 821/530 is 1/7420.