GCD of 221, 156, 387, 380 Calculator

Given Input numbers are 221, 156, 387, 380

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 387 :

The positive integer divisors of 387 that completely divides 387 are.

1, 3, 9, 43, 129, 387

Divisors of 380 :

The positive integer divisors of 380 that completely divides 380 are.

1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380

GCD of numbers is the greatest common divisor

So, the GCD (221, 156, 387, 380) = 1.

Given numbers are 221, 156, 387, 380

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 387 are 3 x 3 x 43

Prime factors of 380 are 2 x 2 x 5 x 19

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

Given numbers are 221, 156, 387, 380

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, 387) = 5031

GCD(13, 387) = ( 13 x 387 ) / 5031

= 13 / 387

= 13

Step3:

LCM(1, 380) = 380

GCD(1, 380) = ( 1 x 380 ) / 380

= 1 / 380

= 1

So, Greatest Common Divisor of 221, 156, 387, 380 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 491, 419, 467, 989
• GCD of 229, 476, 806, 100
• GCD of 340, 581, 141, 353
• GCD of 130, 847, 404, 148
• GCD of 117, 342, 450, 432

Given numbers are 221, 156, 387, 380
The greatest common divisor of numbers 221, 156, 387, 380 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 221, 156, 387, 380 is 1.

1. What is the GCD of 221, 156, 387, 380?

GCD of given numbers 221, 156, 387, 380 is 1

2. How to calculate the greatest common divisor of 221, 156, 387, 380?

We can find the highest common divisor of 221, 156, 387, 380 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, 387, 380 i.e 1.

3. How can I use the GCD of 221, 156, 387, 380Calculator?

Out the numbers 221, 156, 387, 380 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.