GCD of 780, 385, 107, 438 Calculator

Given Input numbers are 780, 385, 107, 438

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 385 :

The positive integer divisors of 385 that completely divides 385 are.

1, 5, 7, 11, 35, 55, 77, 385

Divisors of 107 :

The positive integer divisors of 107 that completely divides 107 are.

1, 107

Divisors of 438 :

The positive integer divisors of 438 that completely divides 438 are.

1, 2, 3, 6, 73, 146, 219, 438

GCD of numbers is the greatest common divisor

So, the GCD (780, 385, 107, 438) = 1.

Given numbers are 780, 385, 107, 438

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 385 are 5 x 7 x 11

Prime factors of 107 are 107

Prime factors of 438 are 2 x 3 x 73

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

Given numbers are 780, 385, 107, 438

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

Apply this formula for all numbers.

Step1:

LCM(780, 385) = 60060

GCD(780, 385) = ( 780 x 385 ) / 60060

= 780 / 385

= 780

Step2:

LCM(5, 107) = 535

GCD(5, 107) = ( 5 x 107 ) / 535

= 5 / 107

= 5

Step3:

LCM(1, 438) = 438

GCD(1, 438) = ( 1 x 438 ) / 438

= 1 / 438

= 1

So, Greatest Common Divisor of 780, 385, 107, 438 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 157, 323, 443, 671
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• GCD of 137, 684, 749, 110
• GCD of 210, 604, 946, 375
• GCD of 997, 824, 347, 735

Given numbers are 780, 385, 107, 438
The greatest common divisor of numbers 780, 385, 107, 438 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 780, 385, 107, 438 is 1.

1. What is the GCD of 780, 385, 107, 438?

GCD of given numbers 780, 385, 107, 438 is 1

2. How to calculate the greatest common divisor of 780, 385, 107, 438?

We can find the highest common divisor of 780, 385, 107, 438 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, 385, 107, 438 i.e 1.

3. How can I use the GCD of 780, 385, 107, 438Calculator?

Out the numbers 780, 385, 107, 438 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.