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GCD of 49, 63, 13, 91 Calculator

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


Online GCD Calculator is useful to find the GCD of 49, 63, 13, 91 quickly. Get the easiest ways to solve the greatest common divisor of 49, 63, 13, 91 i.e 1 in different methods as follows.

GCD of

How to Find GCD of Numbers 49, 63, 13, 91 with Factoring?

Given Input numbers are 49, 63, 13, 91

In the factoring method, we have to find the divisors of all numbers

Divisors of 49 :

The positive integer divisors of 49 that completely divides 49 are.

1, 7, 49

Divisors of 63 :

The positive integer divisors of 63 that completely divides 63 are.

1, 3, 7, 9, 21, 63

Divisors of 13 :

The positive integer divisors of 13 that completely divides 13 are.

1, 13

Divisors of 91 :

The positive integer divisors of 91 that completely divides 91 are.

1, 7, 13, 91


GCD of numbers is the greatest common divisor

So, the GCD (49, 63, 13, 91) = 1.

Find GCD of 49, 63, 13, 91 using Prime Factorization

Given numbers are 49, 63, 13, 91

The list of prime factors of all numbers are

Prime factors of 49 are 7 x 7

Prime factors of 63 are 3 x 3 x 7

Prime factors of 13 are 13

Prime factors of 91 are 7 x 13

The above numbers do not have any common prime factor. So GCD is 1

Steps to Calculate GCD of 49, 63, 13, 91 using LCM Formula

Given numbers are 49, 63, 13, 91

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(49, 63) = 441

GCD(49, 63) = ( 49 x 63 ) / 441

= 49 / 63

= 49


Step2:

LCM(7, 13) = 91

GCD(7, 13) = ( 7 x 13 ) / 91

= 7 / 13

= 7


Step3:

LCM(1, 91) = 91

GCD(1, 91) = ( 1 x 91 ) / 91

= 1 / 91

= 1


So, Greatest Common Divisor of 49, 63, 13, 91 is 1

GCD of Numbers Calculation Examples

Greatest Common Divisor of 49, 63, 13, 91

Given numbers are 49, 63, 13, 91
The greatest common divisor of numbers 49, 63, 13, 91 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 49, 63, 13, 91 is 1.

FAQs on GCD of 49, 63, 13, 91 Calculator

1. What is the GCD of 49, 63, 13, 91?

GCD of given numbers 49, 63, 13, 91 is 1


2. How to calculate the greatest common divisor of 49, 63, 13, 91?

We can find the highest common divisor of 49, 63, 13, 91 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 49, 63, 13, 91 i.e 1.


3. How can I use the GCD of 49, 63, 13, 91Calculator?

Out the numbers 49, 63, 13, 91 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.