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GCF of 21/278, 668/515, 842/588

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 21/278, 668/515, 842/588 i.e 1/42091980 easily. The following is the detailed procedure to determine the greatest common factor of fractions 21/278, 668/515, 842/588.

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 21/278,668/515,842/588?

Given fractions are 21/278,668/515,842/588

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 21/278,668/515,842/588, numerators are 21,668,842

Denominators are 278,515,588

The GCF of 21,668,842 is 1 .

LCM of 278,515,588 is 42091980.

The greatest common factor of 21/278,668/515,842/588 = [GCF of 21,668,842]/[LCM of 278,515,588]= 1/42091980

Therefore, the GCF of 21/278,668/515,842/588 is 1/42091980.

Greatest Common Factor of 21,668,842

To find the highest common factor of 21,668,842, we have to find the factors of both numbers and list the highest common factor.

The factors of 21 are 1, 3, 7, 21

The factors of 668 are 1, 2, 4, 167, 334, 668

The factors of 842 are 1, 2, 421, 842

The HCF of 21,668,842 is 1.

Lets's calculate GCF of 21,668,842

Greatest Common Factor (GCF) of 21,668,842 By Common Division

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

Greatest Common Factor of 21,668,842 By Matching Biggest Common Factor Method

Greatest Common Factor of 21,668,842 By Matching Biggest Common Factor Method

Now, list down the factors of 21

:

1,3,7,21

Now, list down the factors of 668

:

1,2,4,167,334,668

Now, list down the factors of 842

:

1,2,421,842

Greatest Common Factor

We found the factors 21,668,842 . The biggest common factor number is the GCF number.
So the greatest common factor 21,668,842 is 1.


Lets's calculate LCM of 278,515,588

Lowest Common Multiple of 278,515,588 using Common Division

2 278, 515, 588
139, 515, 294

∴ So the LCM of the given numbers is 2 x 139 x 515 x 294 = 42091980

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/42091980

Therefore, the GCF of Fractions 21/278,668/515,842/588 is 1/42091980

Least Common Multiple of 278,515,588 with GCF Formula

Least Common Multiple of 278,515,588 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 278,515,588 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(278,515,588) = 1

common factors(in case of two or more numbers have common factors) = 2

GCF(278,515,588) x common factors =1 x 2 = 2

LCM(278,515,588) = ( 278 × 515 × 588 ) / 2

LCM(278,515,588) = 84183960 / 2

LCM(278,515,588) = 42091980


GCF of Fractions Calculation Examples

FAQs on GCF of Fractions of 21/278, 668/515, 842/588

1. What is the HCF of 21,668,842?

The HCF of 21,668,842 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 21/278, 668/515, 842/588?

Answer: GCF of Numerators as per given numbers 21/278, 668/515, 842/588 is

GCF of Numerators i.e. for 21,668,842 is 1

LCM of denominators i.e. for 278,515,588 is 42091980.

Thus, GCF of Fractions is 1/42091980.Finally, GCF of Fractions for 21/278, 668/515, 842/588 is 1/42091980.