GCD of 685, 670, 653, 428 Calculator

Given Input numbers are 685, 670, 653, 428

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

Divisors of 685 :

The positive integer divisors of 685 that completely divides 685 are.

1, 5, 137, 685

Divisors of 670 :

The positive integer divisors of 670 that completely divides 670 are.

1, 2, 5, 10, 67, 134, 335, 670

Divisors of 653 :

The positive integer divisors of 653 that completely divides 653 are.

1, 653

Divisors of 428 :

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

1, 2, 4, 107, 214, 428

GCD of numbers is the greatest common divisor

So, the GCD (685, 670, 653, 428) = 1.

Given numbers are 685, 670, 653, 428

The list of prime factors of all numbers are

Prime factors of 685 are 5 x 137

Prime factors of 670 are 2 x 5 x 67

Prime factors of 653 are 653

Prime factors of 428 are 2 x 2 x 107

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

Given numbers are 685, 670, 653, 428

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

Apply this formula for all numbers.

Step1:

LCM(685, 670) = 91790

GCD(685, 670) = ( 685 x 670 ) / 91790

= 685 / 670

= 685

Step2:

LCM(5, 653) = 3265

GCD(5, 653) = ( 5 x 653 ) / 3265

= 5 / 653

= 5

Step3:

LCM(1, 428) = 428

GCD(1, 428) = ( 1 x 428 ) / 428

= 1 / 428

= 1

So, Greatest Common Divisor of 685, 670, 653, 428 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 418, 524, 355, 865
• GCD of 276, 959, 659, 495
• GCD of 329, 300, 220, 646
• GCD of 539, 896, 730, 954
• GCD of 984, 992, 988, 229

Given numbers are 685, 670, 653, 428
The greatest common divisor of numbers 685, 670, 653, 428 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 685, 670, 653, 428 is 1.

1. What is the GCD of 685, 670, 653, 428?

GCD of given numbers 685, 670, 653, 428 is 1

2. How to calculate the greatest common divisor of 685, 670, 653, 428?

We can find the highest common divisor of 685, 670, 653, 428 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 685, 670, 653, 428 i.e 1.

3. How can I use the GCD of 685, 670, 653, 428Calculator?

Out the numbers 685, 670, 653, 428 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.