GCD of 428, 374, 778, 781 Calculator

Given Input numbers are 428, 374, 778, 781

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

Divisors of 428 :

The positive integer divisors of 428 that completely divides 428 are.

1, 2, 4, 107, 214, 428

Divisors of 374 :

The positive integer divisors of 374 that completely divides 374 are.

1, 2, 11, 17, 22, 34, 187, 374

Divisors of 778 :

The positive integer divisors of 778 that completely divides 778 are.

1, 2, 389, 778

Divisors of 781 :

The positive integer divisors of 781 that completely divides 781 are.

1, 11, 71, 781

GCD of numbers is the greatest common divisor

So, the GCD (428, 374, 778, 781) = 1.

Given numbers are 428, 374, 778, 781

The list of prime factors of all numbers are

Prime factors of 428 are 2 x 2 x 107

Prime factors of 374 are 2 x 11 x 17

Prime factors of 778 are 2 x 389

Prime factors of 781 are 11 x 71

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

Given numbers are 428, 374, 778, 781

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

Apply this formula for all numbers.

Step1:

LCM(428, 374) = 80036

GCD(428, 374) = ( 428 x 374 ) / 80036

= 428 / 374

= 428

Step2:

LCM(2, 778) = 778

GCD(2, 778) = ( 2 x 778 ) / 778

= 2 / 778

= 2

Step3:

LCM(2, 781) = 1562

GCD(2, 781) = ( 2 x 781 ) / 1562

= 2 / 781

= 2

So, Greatest Common Divisor of 428, 374, 778, 781 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 916, 344, 267, 549
• GCD of 959, 512, 610, 181
• GCD of 262, 957, 243, 313
• GCD of 215, 628, 144, 690
• GCD of 222, 473, 667, 992

Given numbers are 428, 374, 778, 781
The greatest common divisor of numbers 428, 374, 778, 781 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 428, 374, 778, 781 is 1.

1. What is the GCD of 428, 374, 778, 781?

GCD of given numbers 428, 374, 778, 781 is 1

2. How to calculate the greatest common divisor of 428, 374, 778, 781?

We can find the highest common divisor of 428, 374, 778, 781 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 428, 374, 778, 781 i.e 1.

3. How can I use the GCD of 428, 374, 778, 781Calculator?

Out the numbers 428, 374, 778, 781 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.