GCD of 771, 477, 676, 420 Calculator

Given Input numbers are 771, 477, 676, 420

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

Divisors of 771 :

The positive integer divisors of 771 that completely divides 771 are.

1, 3, 257, 771

Divisors of 477 :

The positive integer divisors of 477 that completely divides 477 are.

1, 3, 9, 53, 159, 477

Divisors of 676 :

The positive integer divisors of 676 that completely divides 676 are.

1, 2, 4, 13, 26, 52, 169, 338, 676

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

GCD of numbers is the greatest common divisor

So, the GCD (771, 477, 676, 420) = 1.

Given numbers are 771, 477, 676, 420

The list of prime factors of all numbers are

Prime factors of 771 are 3 x 257

Prime factors of 477 are 3 x 3 x 53

Prime factors of 676 are 2 x 2 x 13 x 13

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

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

Given numbers are 771, 477, 676, 420

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

Apply this formula for all numbers.

Step1:

LCM(771, 477) = 122589

GCD(771, 477) = ( 771 x 477 ) / 122589

= 771 / 477

= 771

Step2:

LCM(3, 676) = 2028

GCD(3, 676) = ( 3 x 676 ) / 2028

= 3 / 676

= 3

Step3:

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

= 1 / 420

= 1

So, Greatest Common Divisor of 771, 477, 676, 420 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 988, 819, 206, 557
• GCD of 548, 359, 301, 149
• GCD of 651, 898, 858, 211
• GCD of 326, 688, 948, 901
• GCD of 665, 764, 354, 331

Given numbers are 771, 477, 676, 420
The greatest common divisor of numbers 771, 477, 676, 420 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 771, 477, 676, 420 is 1.

1. What is the GCD of 771, 477, 676, 420?

GCD of given numbers 771, 477, 676, 420 is 1

2. How to calculate the greatest common divisor of 771, 477, 676, 420?

We can find the highest common divisor of 771, 477, 676, 420 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 771, 477, 676, 420 i.e 1.

3. How can I use the GCD of 771, 477, 676, 420Calculator?

Out the numbers 771, 477, 676, 420 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.