GCD of 620, 642, 861, 693 Calculator

Given Input numbers are 620, 642, 861, 693

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 642 :

The positive integer divisors of 642 that completely divides 642 are.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 861 :

The positive integer divisors of 861 that completely divides 861 are.

1, 3, 7, 21, 41, 123, 287, 861

Divisors of 693 :

The positive integer divisors of 693 that completely divides 693 are.

1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693

GCD of numbers is the greatest common divisor

So, the GCD (620, 642, 861, 693) = 1.

Given numbers are 620, 642, 861, 693

The list of prime factors of all numbers are

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

Prime factors of 642 are 2 x 3 x 107

Prime factors of 861 are 3 x 7 x 41

Prime factors of 693 are 3 x 3 x 7 x 11

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

Given numbers are 620, 642, 861, 693

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

Apply this formula for all numbers.

Step1:

LCM(620, 642) = 199020

GCD(620, 642) = ( 620 x 642 ) / 199020

= 620 / 642

= 620

Step2:

LCM(2, 861) = 1722

GCD(2, 861) = ( 2 x 861 ) / 1722

= 2 / 861

= 2

Step3:

LCM(1, 693) = 693

GCD(1, 693) = ( 1 x 693 ) / 693

= 1 / 693

= 1

So, Greatest Common Divisor of 620, 642, 861, 693 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 566, 727, 698, 243
• GCD of 812, 656, 408, 631
• GCD of 245, 439, 117, 224
• GCD of 431, 655, 359, 550
• GCD of 117, 383, 866, 204

Given numbers are 620, 642, 861, 693
The greatest common divisor of numbers 620, 642, 861, 693 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 620, 642, 861, 693 is 1.

1. What is the GCD of 620, 642, 861, 693?

GCD of given numbers 620, 642, 861, 693 is 1

2. How to calculate the greatest common divisor of 620, 642, 861, 693?

We can find the highest common divisor of 620, 642, 861, 693 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, 642, 861, 693 i.e 1.

3. How can I use the GCD of 620, 642, 861, 693Calculator?

Out the numbers 620, 642, 861, 693 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.