GCD of 638, 698, 675, 691 Calculator

Given Input numbers are 638, 698, 675, 691

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

Divisors of 638 :

The positive integer divisors of 638 that completely divides 638 are.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 698 :

The positive integer divisors of 698 that completely divides 698 are.

1, 2, 349, 698

Divisors of 675 :

The positive integer divisors of 675 that completely divides 675 are.

1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675

Divisors of 691 :

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

1, 691

GCD of numbers is the greatest common divisor

So, the GCD (638, 698, 675, 691) = 1.

Given numbers are 638, 698, 675, 691

The list of prime factors of all numbers are

Prime factors of 638 are 2 x 11 x 29

Prime factors of 698 are 2 x 349

Prime factors of 675 are 3 x 3 x 3 x 5 x 5

Prime factors of 691 are 691

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

Given numbers are 638, 698, 675, 691

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

Apply this formula for all numbers.

Step1:

LCM(638, 698) = 222662

GCD(638, 698) = ( 638 x 698 ) / 222662

= 638 / 698

= 638

Step2:

LCM(2, 675) = 1350

GCD(2, 675) = ( 2 x 675 ) / 1350

= 2 / 675

= 2

Step3:

LCM(1, 691) = 691

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

= 1 / 691

= 1

So, Greatest Common Divisor of 638, 698, 675, 691 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 715, 934, 677, 791
• GCD of 373, 353, 298, 165
• GCD of 822, 976, 457, 383
• GCD of 399, 873, 452, 867
• GCD of 570, 344, 913, 476

Given numbers are 638, 698, 675, 691
The greatest common divisor of numbers 638, 698, 675, 691 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 638, 698, 675, 691 is 1.

1. What is the GCD of 638, 698, 675, 691?

GCD of given numbers 638, 698, 675, 691 is 1

2. How to calculate the greatest common divisor of 638, 698, 675, 691?

We can find the highest common divisor of 638, 698, 675, 691 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 638, 698, 675, 691 i.e 1.

3. How can I use the GCD of 638, 698, 675, 691Calculator?

Out the numbers 638, 698, 675, 691 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.