GCD of 308, 686, 491, 620 Calculator

Given Input numbers are 308, 686, 491, 620

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

Divisors of 308 :

The positive integer divisors of 308 that completely divides 308 are.

1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308

Divisors of 686 :

The positive integer divisors of 686 that completely divides 686 are.

1, 2, 7, 14, 49, 98, 343, 686

Divisors of 491 :

The positive integer divisors of 491 that completely divides 491 are.

1, 491

Divisors of 620 :

The positive integer divisors of 620 that completely divides 620 are.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

GCD of numbers is the greatest common divisor

So, the GCD (308, 686, 491, 620) = 1.

Given numbers are 308, 686, 491, 620

The list of prime factors of all numbers are

Prime factors of 308 are 2 x 2 x 7 x 11

Prime factors of 686 are 2 x 7 x 7 x 7

Prime factors of 491 are 491

Prime factors of 620 are 2 x 2 x 5 x 31

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

Given numbers are 308, 686, 491, 620

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

Apply this formula for all numbers.

Step1:

LCM(308, 686) = 15092

GCD(308, 686) = ( 308 x 686 ) / 15092

= 308 / 686

= 308

Step2:

LCM(14, 491) = 6874

GCD(14, 491) = ( 14 x 491 ) / 6874

= 14 / 491

= 14

Step3:

LCM(1, 620) = 620

GCD(1, 620) = ( 1 x 620 ) / 620

= 1 / 620

= 1

So, Greatest Common Divisor of 308, 686, 491, 620 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 576, 143, 301, 741
• GCD of 171, 774, 499, 927
• GCD of 367, 167, 218, 922
• GCD of 753, 326, 329, 826
• GCD of 738, 393, 665, 560

Given numbers are 308, 686, 491, 620
The greatest common divisor of numbers 308, 686, 491, 620 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 308, 686, 491, 620 is 1.

1. What is the GCD of 308, 686, 491, 620?

GCD of given numbers 308, 686, 491, 620 is 1

2. How to calculate the greatest common divisor of 308, 686, 491, 620?

We can find the highest common divisor of 308, 686, 491, 620 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 308, 686, 491, 620 i.e 1.

3. How can I use the GCD of 308, 686, 491, 620Calculator?

Out the numbers 308, 686, 491, 620 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.