GCD of 680, 155, 428, 320 Calculator

Given Input numbers are 680, 155, 428, 320

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

Divisors of 680 :

The positive integer divisors of 680 that completely divides 680 are.

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

Divisors of 155 :

The positive integer divisors of 155 that completely divides 155 are.

1, 5, 31, 155

Divisors of 428 :

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

1, 2, 4, 107, 214, 428

Divisors of 320 :

The positive integer divisors of 320 that completely divides 320 are.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320

GCD of numbers is the greatest common divisor

So, the GCD (680, 155, 428, 320) = 1.

Given numbers are 680, 155, 428, 320

The list of prime factors of all numbers are

Prime factors of 680 are 2 x 2 x 2 x 5 x 17

Prime factors of 155 are 5 x 31

Prime factors of 428 are 2 x 2 x 107

Prime factors of 320 are 2 x 2 x 2 x 2 x 2 x 2 x 5

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

Given numbers are 680, 155, 428, 320

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

Apply this formula for all numbers.

Step1:

LCM(680, 155) = 21080

GCD(680, 155) = ( 680 x 155 ) / 21080

= 680 / 155

= 680

Step2:

LCM(5, 428) = 2140

GCD(5, 428) = ( 5 x 428 ) / 2140

= 5 / 428

= 5

Step3:

LCM(1, 320) = 320

GCD(1, 320) = ( 1 x 320 ) / 320

= 1 / 320

= 1

So, Greatest Common Divisor of 680, 155, 428, 320 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 380, 926, 131, 386
• GCD of 500, 489, 130, 980
• GCD of 598, 914, 200, 609
• GCD of 216, 691, 255, 766
• GCD of 516, 604, 502, 621

Given numbers are 680, 155, 428, 320
The greatest common divisor of numbers 680, 155, 428, 320 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 680, 155, 428, 320 is 1.

1. What is the GCD of 680, 155, 428, 320?

GCD of given numbers 680, 155, 428, 320 is 1

2. How to calculate the greatest common divisor of 680, 155, 428, 320?

We can find the highest common divisor of 680, 155, 428, 320 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 680, 155, 428, 320 i.e 1.

3. How can I use the GCD of 680, 155, 428, 320Calculator?

Out the numbers 680, 155, 428, 320 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.