GCD of 691, 758, 400, 780 Calculator

Given Input numbers are 691, 758, 400, 780

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

Divisors of 691 :

The positive integer divisors of 691 that completely divides 691 are.

1, 691

Divisors of 758 :

The positive integer divisors of 758 that completely divides 758 are.

1, 2, 379, 758

Divisors of 400 :

The positive integer divisors of 400 that completely divides 400 are.

1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400

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

GCD of numbers is the greatest common divisor

So, the GCD (691, 758, 400, 780) = 1.

Given numbers are 691, 758, 400, 780

The list of prime factors of all numbers are

Prime factors of 691 are 691

Prime factors of 758 are 2 x 379

Prime factors of 400 are 2 x 2 x 2 x 2 x 5 x 5

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

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

Given numbers are 691, 758, 400, 780

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

Apply this formula for all numbers.

Step1:

LCM(691, 758) = 523778

GCD(691, 758) = ( 691 x 758 ) / 523778

= 691 / 758

= 691

Step2:

LCM(1, 400) = 400

GCD(1, 400) = ( 1 x 400 ) / 400

= 1 / 400

= 1

Step3:

LCM(1, 780) = 780

GCD(1, 780) = ( 1 x 780 ) / 780

= 1 / 780

= 1

So, Greatest Common Divisor of 691, 758, 400, 780 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 456, 985, 833, 607
• GCD of 424, 859, 900, 223
• GCD of 531, 192, 478, 296
• GCD of 140, 596, 648, 657
• GCD of 607, 992, 958, 597

Given numbers are 691, 758, 400, 780
The greatest common divisor of numbers 691, 758, 400, 780 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 691, 758, 400, 780 is 1.

1. What is the GCD of 691, 758, 400, 780?

GCD of given numbers 691, 758, 400, 780 is 1

2. How to calculate the greatest common divisor of 691, 758, 400, 780?

We can find the highest common divisor of 691, 758, 400, 780 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 691, 758, 400, 780 i.e 1.

3. How can I use the GCD of 691, 758, 400, 780Calculator?

Out the numbers 691, 758, 400, 780 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.