GCD of 780, 687, 644, 372 Calculator

Given Input numbers are 780, 687, 644, 372

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

Divisors of 780 :

The positive integer divisors of 780 that completely divides 780 are.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

Divisors of 687 :

The positive integer divisors of 687 that completely divides 687 are.

1, 3, 229, 687

Divisors of 644 :

The positive integer divisors of 644 that completely divides 644 are.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 372 :

The positive integer divisors of 372 that completely divides 372 are.

1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 186, 372

GCD of numbers is the greatest common divisor

So, the GCD (780, 687, 644, 372) = 1.

Given numbers are 780, 687, 644, 372

The list of prime factors of all numbers are

Prime factors of 780 are 2 x 2 x 3 x 5 x 13

Prime factors of 687 are 3 x 229

Prime factors of 644 are 2 x 2 x 7 x 23

Prime factors of 372 are 2 x 2 x 3 x 31

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

Given numbers are 780, 687, 644, 372

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

Apply this formula for all numbers.

Step1:

LCM(780, 687) = 178620

GCD(780, 687) = ( 780 x 687 ) / 178620

= 780 / 687

= 780

Step2:

LCM(3, 644) = 1932

GCD(3, 644) = ( 3 x 644 ) / 1932

= 3 / 644

= 3

Step3:

LCM(1, 372) = 372

GCD(1, 372) = ( 1 x 372 ) / 372

= 1 / 372

= 1

So, Greatest Common Divisor of 780, 687, 644, 372 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 946, 325, 920, 835
• GCD of 332, 581, 395, 318
• GCD of 738, 679, 485, 846
• GCD of 769, 965, 435, 143
• GCD of 634, 122, 169, 746

Given numbers are 780, 687, 644, 372
The greatest common divisor of numbers 780, 687, 644, 372 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 780, 687, 644, 372 is 1.

1. What is the GCD of 780, 687, 644, 372?

GCD of given numbers 780, 687, 644, 372 is 1

2. How to calculate the greatest common divisor of 780, 687, 644, 372?

We can find the highest common divisor of 780, 687, 644, 372 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 780, 687, 644, 372 i.e 1.

3. How can I use the GCD of 780, 687, 644, 372Calculator?

Out the numbers 780, 687, 644, 372 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.