GCD of 868, 420, 358, 561 Calculator

Given Input numbers are 868, 420, 358, 561

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

Divisors of 868 :

The positive integer divisors of 868 that completely divides 868 are.

1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868

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 358 :

The positive integer divisors of 358 that completely divides 358 are.

1, 2, 179, 358

Divisors of 561 :

The positive integer divisors of 561 that completely divides 561 are.

1, 3, 11, 17, 33, 51, 187, 561

GCD of numbers is the greatest common divisor

So, the GCD (868, 420, 358, 561) = 1.

Given numbers are 868, 420, 358, 561

The list of prime factors of all numbers are

Prime factors of 868 are 2 x 2 x 7 x 31

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

Prime factors of 358 are 2 x 179

Prime factors of 561 are 3 x 11 x 17

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

Given numbers are 868, 420, 358, 561

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

Apply this formula for all numbers.

Step1:

LCM(868, 420) = 13020

GCD(868, 420) = ( 868 x 420 ) / 13020

= 868 / 420

= 868

Step2:

LCM(28, 358) = 5012

GCD(28, 358) = ( 28 x 358 ) / 5012

= 28 / 358

= 28

Step3:

LCM(2, 561) = 1122

GCD(2, 561) = ( 2 x 561 ) / 1122

= 2 / 561

= 2

So, Greatest Common Divisor of 868, 420, 358, 561 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 690, 897, 748, 591
• GCD of 376, 844, 768, 389
• GCD of 353, 929, 589, 470
• GCD of 754, 371, 804, 343
• GCD of 678, 761, 518, 529

Given numbers are 868, 420, 358, 561
The greatest common divisor of numbers 868, 420, 358, 561 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 868, 420, 358, 561 is 1.

1. What is the GCD of 868, 420, 358, 561?

GCD of given numbers 868, 420, 358, 561 is 1

2. How to calculate the greatest common divisor of 868, 420, 358, 561?

We can find the highest common divisor of 868, 420, 358, 561 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 868, 420, 358, 561 i.e 1.

3. How can I use the GCD of 868, 420, 358, 561Calculator?

Out the numbers 868, 420, 358, 561 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.