GCD of 971, 142, 155, 680 Calculator

Given Input numbers are 971, 142, 155, 680

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

Divisors of 971 :

The positive integer divisors of 971 that completely divides 971 are.

1, 971

Divisors of 142 :

The positive integer divisors of 142 that completely divides 142 are.

1, 2, 71, 142

Divisors of 155 :

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

1, 5, 31, 155

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

GCD of numbers is the greatest common divisor

So, the GCD (971, 142, 155, 680) = 1.

Given numbers are 971, 142, 155, 680

The list of prime factors of all numbers are

Prime factors of 971 are 971

Prime factors of 142 are 2 x 71

Prime factors of 155 are 5 x 31

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

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

Given numbers are 971, 142, 155, 680

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

Apply this formula for all numbers.

Step1:

LCM(971, 142) = 137882

GCD(971, 142) = ( 971 x 142 ) / 137882

= 971 / 142

= 971

Step2:

LCM(1, 155) = 155

GCD(1, 155) = ( 1 x 155 ) / 155

= 1 / 155

= 1

Step3:

LCM(1, 680) = 680

GCD(1, 680) = ( 1 x 680 ) / 680

= 1 / 680

= 1

So, Greatest Common Divisor of 971, 142, 155, 680 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 571, 612, 566, 729
• GCD of 806, 227, 382, 733
• GCD of 487, 800, 602, 283
• GCD of 340, 283, 181, 899
• GCD of 774, 667, 433, 447

Given numbers are 971, 142, 155, 680
The greatest common divisor of numbers 971, 142, 155, 680 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 971, 142, 155, 680 is 1.

1. What is the GCD of 971, 142, 155, 680?

GCD of given numbers 971, 142, 155, 680 is 1

2. How to calculate the greatest common divisor of 971, 142, 155, 680?

We can find the highest common divisor of 971, 142, 155, 680 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 971, 142, 155, 680 i.e 1.

3. How can I use the GCD of 971, 142, 155, 680Calculator?

Out the numbers 971, 142, 155, 680 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.