GCD of 691, 659, 648, 615 Calculator

Given Input numbers are 691, 659, 648, 615

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 659 :

The positive integer divisors of 659 that completely divides 659 are.

1, 659

Divisors of 648 :

The positive integer divisors of 648 that completely divides 648 are.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648

Divisors of 615 :

The positive integer divisors of 615 that completely divides 615 are.

1, 3, 5, 15, 41, 123, 205, 615

GCD of numbers is the greatest common divisor

So, the GCD (691, 659, 648, 615) = 1.

Given numbers are 691, 659, 648, 615

The list of prime factors of all numbers are

Prime factors of 691 are 691

Prime factors of 659 are 659

Prime factors of 648 are 2 x 2 x 2 x 3 x 3 x 3 x 3

Prime factors of 615 are 3 x 5 x 41

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

Given numbers are 691, 659, 648, 615

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

Apply this formula for all numbers.

Step1:

LCM(691, 659) = 455369

GCD(691, 659) = ( 691 x 659 ) / 455369

= 691 / 659

= 691

Step2:

LCM(1, 648) = 648

GCD(1, 648) = ( 1 x 648 ) / 648

= 1 / 648

= 1

Step3:

LCM(1, 615) = 615

GCD(1, 615) = ( 1 x 615 ) / 615

= 1 / 615

= 1

So, Greatest Common Divisor of 691, 659, 648, 615 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 607, 449, 418, 185
• GCD of 728, 847, 619, 633
• GCD of 560, 836, 177, 893
• GCD of 449, 393, 896, 530
• GCD of 907, 767, 118, 153

Given numbers are 691, 659, 648, 615
The greatest common divisor of numbers 691, 659, 648, 615 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 691, 659, 648, 615 is 1.

1. What is the GCD of 691, 659, 648, 615?

GCD of given numbers 691, 659, 648, 615 is 1

2. How to calculate the greatest common divisor of 691, 659, 648, 615?

We can find the highest common divisor of 691, 659, 648, 615 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, 659, 648, 615 i.e 1.

3. How can I use the GCD of 691, 659, 648, 615Calculator?

Out the numbers 691, 659, 648, 615 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.