GCD of 391, 137, 775, 247 Calculator

Given Input numbers are 391, 137, 775, 247

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

Divisors of 391 :

The positive integer divisors of 391 that completely divides 391 are.

1, 17, 23, 391

Divisors of 137 :

The positive integer divisors of 137 that completely divides 137 are.

1, 137

Divisors of 775 :

The positive integer divisors of 775 that completely divides 775 are.

1, 5, 25, 31, 155, 775

Divisors of 247 :

The positive integer divisors of 247 that completely divides 247 are.

1, 13, 19, 247

GCD of numbers is the greatest common divisor

So, the GCD (391, 137, 775, 247) = 1.

Given numbers are 391, 137, 775, 247

The list of prime factors of all numbers are

Prime factors of 391 are 17 x 23

Prime factors of 137 are 137

Prime factors of 775 are 5 x 5 x 31

Prime factors of 247 are 13 x 19

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

Given numbers are 391, 137, 775, 247

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

Apply this formula for all numbers.

Step1:

LCM(391, 137) = 53567

GCD(391, 137) = ( 391 x 137 ) / 53567

= 391 / 137

= 391

Step2:

LCM(1, 775) = 775

GCD(1, 775) = ( 1 x 775 ) / 775

= 1 / 775

= 1

Step3:

LCM(1, 247) = 247

GCD(1, 247) = ( 1 x 247 ) / 247

= 1 / 247

= 1

So, Greatest Common Divisor of 391, 137, 775, 247 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 910, 671, 635, 114
• GCD of 727, 388, 648, 300
• GCD of 432, 877, 915, 683
• GCD of 349, 275, 845, 670
• GCD of 844, 715, 894, 840

Given numbers are 391, 137, 775, 247
The greatest common divisor of numbers 391, 137, 775, 247 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 391, 137, 775, 247 is 1.

1. What is the GCD of 391, 137, 775, 247?

GCD of given numbers 391, 137, 775, 247 is 1

2. How to calculate the greatest common divisor of 391, 137, 775, 247?

We can find the highest common divisor of 391, 137, 775, 247 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 391, 137, 775, 247 i.e 1.

3. How can I use the GCD of 391, 137, 775, 247Calculator?

Out the numbers 391, 137, 775, 247 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.