GCD of 620, 664, 694, 391 Calculator

Given Input numbers are 620, 664, 694, 391

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

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

Divisors of 664 :

The positive integer divisors of 664 that completely divides 664 are.

1, 2, 4, 8, 83, 166, 332, 664

Divisors of 694 :

The positive integer divisors of 694 that completely divides 694 are.

1, 2, 347, 694

Divisors of 391 :

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

1, 17, 23, 391

GCD of numbers is the greatest common divisor

So, the GCD (620, 664, 694, 391) = 1.

Given numbers are 620, 664, 694, 391

The list of prime factors of all numbers are

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

Prime factors of 664 are 2 x 2 x 2 x 83

Prime factors of 694 are 2 x 347

Prime factors of 391 are 17 x 23

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

Given numbers are 620, 664, 694, 391

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

Apply this formula for all numbers.

Step1:

LCM(620, 664) = 102920

GCD(620, 664) = ( 620 x 664 ) / 102920

= 620 / 664

= 620

Step2:

LCM(4, 694) = 1388

GCD(4, 694) = ( 4 x 694 ) / 1388

= 4 / 694

= 4

Step3:

LCM(2, 391) = 782

GCD(2, 391) = ( 2 x 391 ) / 782

= 2 / 391

= 2

So, Greatest Common Divisor of 620, 664, 694, 391 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 198, 705, 466, 738
• GCD of 671, 632, 335, 523
• GCD of 138, 354, 188, 376
• GCD of 834, 551, 977, 573
• GCD of 520, 297, 289, 490

Given numbers are 620, 664, 694, 391
The greatest common divisor of numbers 620, 664, 694, 391 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 620, 664, 694, 391 is 1.

1. What is the GCD of 620, 664, 694, 391?

GCD of given numbers 620, 664, 694, 391 is 1

2. How to calculate the greatest common divisor of 620, 664, 694, 391?

We can find the highest common divisor of 620, 664, 694, 391 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 620, 664, 694, 391 i.e 1.

3. How can I use the GCD of 620, 664, 694, 391Calculator?

Out the numbers 620, 664, 694, 391 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.