GCD of 428, 385, 692, 690 Calculator

Given Input numbers are 428, 385, 692, 690

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 385 :

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

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

Divisors of 692 :

The positive integer divisors of 692 that completely divides 692 are.

1, 2, 4, 173, 346, 692

Divisors of 690 :

The positive integer divisors of 690 that completely divides 690 are.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

GCD of numbers is the greatest common divisor

So, the GCD (428, 385, 692, 690) = 1.

Given numbers are 428, 385, 692, 690

The list of prime factors of all numbers are

Prime factors of 428 are 2 x 2 x 107

Prime factors of 385 are 5 x 7 x 11

Prime factors of 692 are 2 x 2 x 173

Prime factors of 690 are 2 x 3 x 5 x 23

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

Given numbers are 428, 385, 692, 690

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

Apply this formula for all numbers.

Step1:

LCM(428, 385) = 164780

GCD(428, 385) = ( 428 x 385 ) / 164780

= 428 / 385

= 428

Step2:

LCM(1, 692) = 692

GCD(1, 692) = ( 1 x 692 ) / 692

= 1 / 692

= 1

Step3:

LCM(1, 690) = 690

GCD(1, 690) = ( 1 x 690 ) / 690

= 1 / 690

= 1

So, Greatest Common Divisor of 428, 385, 692, 690 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 267, 635, 198, 599
• GCD of 132, 407, 779, 844
• GCD of 333, 346, 258, 529
• GCD of 391, 598, 450, 500
• GCD of 972, 476, 619, 194

Given numbers are 428, 385, 692, 690
The greatest common divisor of numbers 428, 385, 692, 690 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 428, 385, 692, 690 is 1.

1. What is the GCD of 428, 385, 692, 690?

GCD of given numbers 428, 385, 692, 690 is 1

2. How to calculate the greatest common divisor of 428, 385, 692, 690?

We can find the highest common divisor of 428, 385, 692, 690 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, 385, 692, 690 i.e 1.

3. How can I use the GCD of 428, 385, 692, 690Calculator?

Out the numbers 428, 385, 692, 690 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.