GCD of 221, 156, 143, 206 Calculator

Given Input numbers are 221, 156, 143, 206

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

Divisors of 221 :

The positive integer divisors of 221 that completely divides 221 are.

1, 13, 17, 221

Divisors of 156 :

The positive integer divisors of 156 that completely divides 156 are.

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156

Divisors of 143 :

The positive integer divisors of 143 that completely divides 143 are.

1, 11, 13, 143

Divisors of 206 :

The positive integer divisors of 206 that completely divides 206 are.

1, 2, 103, 206

GCD of numbers is the greatest common divisor

So, the GCD (221, 156, 143, 206) = 1.

Given numbers are 221, 156, 143, 206

The list of prime factors of all numbers are

Prime factors of 221 are 13 x 17

Prime factors of 156 are 2 x 2 x 3 x 13

Prime factors of 143 are 11 x 13

Prime factors of 206 are 2 x 103

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

Given numbers are 221, 156, 143, 206

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

Apply this formula for all numbers.

Step1:

LCM(221, 156) = 2652

GCD(221, 156) = ( 221 x 156 ) / 2652

= 221 / 156

= 221

Step2:

LCM(13, 143) = 143

GCD(13, 143) = ( 13 x 143 ) / 143

= 13 / 143

= 13

Step3:

LCM(13, 206) = 2678

GCD(13, 206) = ( 13 x 206 ) / 2678

= 13 / 206

= 13

So, Greatest Common Divisor of 221, 156, 143, 206 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 923, 573, 277, 669
• GCD of 701, 993, 621, 746
• GCD of 979, 966, 797, 862
• GCD of 636, 206, 938, 119
• GCD of 465, 506, 439, 538

Given numbers are 221, 156, 143, 206
The greatest common divisor of numbers 221, 156, 143, 206 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 221, 156, 143, 206 is 1.

1. What is the GCD of 221, 156, 143, 206?

GCD of given numbers 221, 156, 143, 206 is 1

2. How to calculate the greatest common divisor of 221, 156, 143, 206?

We can find the highest common divisor of 221, 156, 143, 206 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 221, 156, 143, 206 i.e 1.

3. How can I use the GCD of 221, 156, 143, 206Calculator?

Out the numbers 221, 156, 143, 206 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.