GCD of 856, 161, 691, 987 Calculator

Given Input numbers are 856, 161, 691, 987

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

Divisors of 856 :

The positive integer divisors of 856 that completely divides 856 are.

1, 2, 4, 8, 107, 214, 428, 856

Divisors of 161 :

The positive integer divisors of 161 that completely divides 161 are.

1, 7, 23, 161

Divisors of 691 :

The positive integer divisors of 691 that completely divides 691 are.

1, 691

Divisors of 987 :

The positive integer divisors of 987 that completely divides 987 are.

1, 3, 7, 21, 47, 141, 329, 987

GCD of numbers is the greatest common divisor

So, the GCD (856, 161, 691, 987) = 1.

Given numbers are 856, 161, 691, 987

The list of prime factors of all numbers are

Prime factors of 856 are 2 x 2 x 2 x 107

Prime factors of 161 are 7 x 23

Prime factors of 691 are 691

Prime factors of 987 are 3 x 7 x 47

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

Given numbers are 856, 161, 691, 987

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

Apply this formula for all numbers.

Step1:

LCM(856, 161) = 137816

GCD(856, 161) = ( 856 x 161 ) / 137816

= 856 / 161

= 856

Step2:

LCM(1, 691) = 691

GCD(1, 691) = ( 1 x 691 ) / 691

= 1 / 691

= 1

Step3:

LCM(1, 987) = 987

GCD(1, 987) = ( 1 x 987 ) / 987

= 1 / 987

= 1

So, Greatest Common Divisor of 856, 161, 691, 987 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 534, 352, 549, 139
• GCD of 943, 313, 136, 495
• GCD of 556, 368, 948, 852
• GCD of 746, 227, 675, 919
• GCD of 779, 579, 439, 338

Given numbers are 856, 161, 691, 987
The greatest common divisor of numbers 856, 161, 691, 987 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 856, 161, 691, 987 is 1.

1. What is the GCD of 856, 161, 691, 987?

GCD of given numbers 856, 161, 691, 987 is 1

2. How to calculate the greatest common divisor of 856, 161, 691, 987?

We can find the highest common divisor of 856, 161, 691, 987 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 856, 161, 691, 987 i.e 1.

3. How can I use the GCD of 856, 161, 691, 987Calculator?

Out the numbers 856, 161, 691, 987 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.