GCD of 690, 791, 977, 657 Calculator

Given Input numbers are 690, 791, 977, 657

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

Divisors of 690 :

The positive integer divisors of 690 that completely divides 690 are.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

Divisors of 791 :

The positive integer divisors of 791 that completely divides 791 are.

1, 7, 113, 791

Divisors of 977 :

The positive integer divisors of 977 that completely divides 977 are.

1, 977

Divisors of 657 :

The positive integer divisors of 657 that completely divides 657 are.

1, 3, 9, 73, 219, 657

GCD of numbers is the greatest common divisor

So, the GCD (690, 791, 977, 657) = 1.

Given numbers are 690, 791, 977, 657

The list of prime factors of all numbers are

Prime factors of 690 are 2 x 3 x 5 x 23

Prime factors of 791 are 7 x 113

Prime factors of 977 are 977

Prime factors of 657 are 3 x 3 x 73

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

Given numbers are 690, 791, 977, 657

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

Apply this formula for all numbers.

Step1:

LCM(690, 791) = 545790

GCD(690, 791) = ( 690 x 791 ) / 545790

= 690 / 791

= 690

Step2:

LCM(1, 977) = 977

GCD(1, 977) = ( 1 x 977 ) / 977

= 1 / 977

= 1

Step3:

LCM(1, 657) = 657

GCD(1, 657) = ( 1 x 657 ) / 657

= 1 / 657

= 1

So, Greatest Common Divisor of 690, 791, 977, 657 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 503, 406, 383, 899
• GCD of 658, 614, 737, 637
• GCD of 703, 233, 457, 371
• GCD of 991, 445, 466, 152
• GCD of 904, 743, 872, 902

Given numbers are 690, 791, 977, 657
The greatest common divisor of numbers 690, 791, 977, 657 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 690, 791, 977, 657 is 1.

1. What is the GCD of 690, 791, 977, 657?

GCD of given numbers 690, 791, 977, 657 is 1

2. How to calculate the greatest common divisor of 690, 791, 977, 657?

We can find the highest common divisor of 690, 791, 977, 657 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 690, 791, 977, 657 i.e 1.

3. How can I use the GCD of 690, 791, 977, 657Calculator?

Out the numbers 690, 791, 977, 657 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.