GCD of 821, 634, 770, 666 Calculator

Given Input numbers are 821, 634, 770, 666

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

Divisors of 821 :

The positive integer divisors of 821 that completely divides 821 are.

1, 821

Divisors of 634 :

The positive integer divisors of 634 that completely divides 634 are.

1, 2, 317, 634

Divisors of 770 :

The positive integer divisors of 770 that completely divides 770 are.

1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770

Divisors of 666 :

The positive integer divisors of 666 that completely divides 666 are.

1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666

GCD of numbers is the greatest common divisor

So, the GCD (821, 634, 770, 666) = 1.

Given numbers are 821, 634, 770, 666

The list of prime factors of all numbers are

Prime factors of 821 are 821

Prime factors of 634 are 2 x 317

Prime factors of 770 are 2 x 5 x 7 x 11

Prime factors of 666 are 2 x 3 x 3 x 37

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

Given numbers are 821, 634, 770, 666

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

Apply this formula for all numbers.

Step1:

LCM(821, 634) = 520514

GCD(821, 634) = ( 821 x 634 ) / 520514

= 821 / 634

= 821

Step2:

LCM(1, 770) = 770

GCD(1, 770) = ( 1 x 770 ) / 770

= 1 / 770

= 1

Step3:

LCM(1, 666) = 666

GCD(1, 666) = ( 1 x 666 ) / 666

= 1 / 666

= 1

So, Greatest Common Divisor of 821, 634, 770, 666 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 900, 145, 707, 332
• GCD of 602, 816, 800, 428
• GCD of 653, 754, 824, 958
• GCD of 904, 328, 970, 910
• GCD of 814, 179, 176, 878

Given numbers are 821, 634, 770, 666
The greatest common divisor of numbers 821, 634, 770, 666 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 821, 634, 770, 666 is 1.

1. What is the GCD of 821, 634, 770, 666?

GCD of given numbers 821, 634, 770, 666 is 1

2. How to calculate the greatest common divisor of 821, 634, 770, 666?

We can find the highest common divisor of 821, 634, 770, 666 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 821, 634, 770, 666 i.e 1.

3. How can I use the GCD of 821, 634, 770, 666Calculator?

Out the numbers 821, 634, 770, 666 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.