GCD of 691, 649, 128, 986 Calculator

Given Input numbers are 691, 649, 128, 986

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

Divisors of 691 :

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

1, 691

Divisors of 649 :

The positive integer divisors of 649 that completely divides 649 are.

1, 11, 59, 649

Divisors of 128 :

The positive integer divisors of 128 that completely divides 128 are.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 986 :

The positive integer divisors of 986 that completely divides 986 are.

1, 2, 17, 29, 34, 58, 493, 986

GCD of numbers is the greatest common divisor

So, the GCD (691, 649, 128, 986) = 1.

Given numbers are 691, 649, 128, 986

The list of prime factors of all numbers are

Prime factors of 691 are 691

Prime factors of 649 are 11 x 59

Prime factors of 128 are 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime factors of 986 are 2 x 17 x 29

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

Given numbers are 691, 649, 128, 986

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

Apply this formula for all numbers.

Step1:

LCM(691, 649) = 448459

GCD(691, 649) = ( 691 x 649 ) / 448459

= 691 / 649

= 691

Step2:

LCM(1, 128) = 128

GCD(1, 128) = ( 1 x 128 ) / 128

= 1 / 128

= 1

Step3:

LCM(1, 986) = 986

GCD(1, 986) = ( 1 x 986 ) / 986

= 1 / 986

= 1

So, Greatest Common Divisor of 691, 649, 128, 986 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 751, 905, 882, 287
• GCD of 430, 758, 857, 958
• GCD of 754, 256, 379, 531
• GCD of 228, 665, 121, 437
• GCD of 859, 773, 538, 991

Given numbers are 691, 649, 128, 986
The greatest common divisor of numbers 691, 649, 128, 986 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 691, 649, 128, 986 is 1.

1. What is the GCD of 691, 649, 128, 986?

GCD of given numbers 691, 649, 128, 986 is 1

2. How to calculate the greatest common divisor of 691, 649, 128, 986?

We can find the highest common divisor of 691, 649, 128, 986 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 691, 649, 128, 986 i.e 1.

3. How can I use the GCD of 691, 649, 128, 986Calculator?

Out the numbers 691, 649, 128, 986 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.