GCD of 691, 646, 145, 203 Calculator

Given Input numbers are 691, 646, 145, 203

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 646 :

The positive integer divisors of 646 that completely divides 646 are.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 145 :

The positive integer divisors of 145 that completely divides 145 are.

1, 5, 29, 145

Divisors of 203 :

The positive integer divisors of 203 that completely divides 203 are.

1, 7, 29, 203

GCD of numbers is the greatest common divisor

So, the GCD (691, 646, 145, 203) = 1.

Given numbers are 691, 646, 145, 203

The list of prime factors of all numbers are

Prime factors of 691 are 691

Prime factors of 646 are 2 x 17 x 19

Prime factors of 145 are 5 x 29

Prime factors of 203 are 7 x 29

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

Given numbers are 691, 646, 145, 203

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

Apply this formula for all numbers.

Step1:

LCM(691, 646) = 446386

GCD(691, 646) = ( 691 x 646 ) / 446386

= 691 / 646

= 691

Step2:

LCM(1, 145) = 145

GCD(1, 145) = ( 1 x 145 ) / 145

= 1 / 145

= 1

Step3:

LCM(1, 203) = 203

GCD(1, 203) = ( 1 x 203 ) / 203

= 1 / 203

= 1

So, Greatest Common Divisor of 691, 646, 145, 203 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 106, 650, 428, 303
• GCD of 666, 199, 930, 802
• GCD of 548, 766, 926, 751
• GCD of 413, 147, 386, 931
• GCD of 690, 991, 445, 364

Given numbers are 691, 646, 145, 203
The greatest common divisor of numbers 691, 646, 145, 203 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 691, 646, 145, 203 is 1.

1. What is the GCD of 691, 646, 145, 203?

GCD of given numbers 691, 646, 145, 203 is 1

2. How to calculate the greatest common divisor of 691, 646, 145, 203?

We can find the highest common divisor of 691, 646, 145, 203 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, 646, 145, 203 i.e 1.

3. How can I use the GCD of 691, 646, 145, 203Calculator?

Out the numbers 691, 646, 145, 203 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.