GCD of 638, 682, 420, 955 Calculator

Given Input numbers are 638, 682, 420, 955

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

Divisors of 638 :

The positive integer divisors of 638 that completely divides 638 are.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 682 :

The positive integer divisors of 682 that completely divides 682 are.

1, 2, 11, 22, 31, 62, 341, 682

Divisors of 420 :

The positive integer divisors of 420 that completely divides 420 are.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

Divisors of 955 :

The positive integer divisors of 955 that completely divides 955 are.

1, 5, 191, 955

GCD of numbers is the greatest common divisor

So, the GCD (638, 682, 420, 955) = 1.

Given numbers are 638, 682, 420, 955

The list of prime factors of all numbers are

Prime factors of 638 are 2 x 11 x 29

Prime factors of 682 are 2 x 11 x 31

Prime factors of 420 are 2 x 2 x 3 x 5 x 7

Prime factors of 955 are 5 x 191

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

Given numbers are 638, 682, 420, 955

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

Apply this formula for all numbers.

Step1:

LCM(638, 682) = 19778

GCD(638, 682) = ( 638 x 682 ) / 19778

= 638 / 682

= 638

Step2:

LCM(22, 420) = 4620

GCD(22, 420) = ( 22 x 420 ) / 4620

= 22 / 420

= 22

Step3:

LCM(2, 955) = 1910

GCD(2, 955) = ( 2 x 955 ) / 1910

= 2 / 955

= 2

So, Greatest Common Divisor of 638, 682, 420, 955 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 736, 726, 376, 150
• GCD of 593, 439, 810, 221
• GCD of 544, 417, 284, 895
• GCD of 657, 881, 195, 488
• GCD of 980, 625, 490, 747

Given numbers are 638, 682, 420, 955
The greatest common divisor of numbers 638, 682, 420, 955 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 638, 682, 420, 955 is 1.

1. What is the GCD of 638, 682, 420, 955?

GCD of given numbers 638, 682, 420, 955 is 1

2. How to calculate the greatest common divisor of 638, 682, 420, 955?

We can find the highest common divisor of 638, 682, 420, 955 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 638, 682, 420, 955 i.e 1.

3. How can I use the GCD of 638, 682, 420, 955Calculator?

Out the numbers 638, 682, 420, 955 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.