GCD of 202, 166, 689, 642 Calculator

Given Input numbers are 202, 166, 689, 642

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

Divisors of 202 :

The positive integer divisors of 202 that completely divides 202 are.

1, 2, 101, 202

Divisors of 166 :

The positive integer divisors of 166 that completely divides 166 are.

1, 2, 83, 166

Divisors of 689 :

The positive integer divisors of 689 that completely divides 689 are.

1, 13, 53, 689

Divisors of 642 :

The positive integer divisors of 642 that completely divides 642 are.

1, 2, 3, 6, 107, 214, 321, 642

GCD of numbers is the greatest common divisor

So, the GCD (202, 166, 689, 642) = 1.

Given numbers are 202, 166, 689, 642

The list of prime factors of all numbers are

Prime factors of 202 are 2 x 101

Prime factors of 166 are 2 x 83

Prime factors of 689 are 13 x 53

Prime factors of 642 are 2 x 3 x 107

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

Given numbers are 202, 166, 689, 642

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

Apply this formula for all numbers.

Step1:

LCM(202, 166) = 16766

GCD(202, 166) = ( 202 x 166 ) / 16766

= 202 / 166

= 202

Step2:

LCM(2, 689) = 1378

GCD(2, 689) = ( 2 x 689 ) / 1378

= 2 / 689

= 2

Step3:

LCM(1, 642) = 642

GCD(1, 642) = ( 1 x 642 ) / 642

= 1 / 642

= 1

So, Greatest Common Divisor of 202, 166, 689, 642 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 368, 972, 289, 499
• GCD of 538, 171, 802, 897
• GCD of 338, 472, 444, 530
• GCD of 433, 582, 137, 343
• GCD of 941, 815, 720, 490

Given numbers are 202, 166, 689, 642
The greatest common divisor of numbers 202, 166, 689, 642 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 202, 166, 689, 642 is 1.

1. What is the GCD of 202, 166, 689, 642?

GCD of given numbers 202, 166, 689, 642 is 1

2. How to calculate the greatest common divisor of 202, 166, 689, 642?

We can find the highest common divisor of 202, 166, 689, 642 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 202, 166, 689, 642 i.e 1.

3. How can I use the GCD of 202, 166, 689, 642Calculator?

Out the numbers 202, 166, 689, 642 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.