GCD of 221, 747, 235, 391 Calculator

Given Input numbers are 221, 747, 235, 391

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 747 :

The positive integer divisors of 747 that completely divides 747 are.

1, 3, 9, 83, 249, 747

Divisors of 235 :

The positive integer divisors of 235 that completely divides 235 are.

1, 5, 47, 235

Divisors of 391 :

The positive integer divisors of 391 that completely divides 391 are.

1, 17, 23, 391

GCD of numbers is the greatest common divisor

So, the GCD (221, 747, 235, 391) = 1.

Given numbers are 221, 747, 235, 391

The list of prime factors of all numbers are

Prime factors of 221 are 13 x 17

Prime factors of 747 are 3 x 3 x 83

Prime factors of 235 are 5 x 47

Prime factors of 391 are 17 x 23

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

Given numbers are 221, 747, 235, 391

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

Apply this formula for all numbers.

Step1:

LCM(221, 747) = 165087

GCD(221, 747) = ( 221 x 747 ) / 165087

= 221 / 747

= 221

Step2:

LCM(1, 235) = 235

GCD(1, 235) = ( 1 x 235 ) / 235

= 1 / 235

= 1

Step3:

LCM(1, 391) = 391

GCD(1, 391) = ( 1 x 391 ) / 391

= 1 / 391

= 1

So, Greatest Common Divisor of 221, 747, 235, 391 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 450, 692, 626, 728
• GCD of 612, 668, 564, 875
• GCD of 636, 622, 388, 596
• GCD of 946, 128, 569, 296
• GCD of 897, 683, 629, 620

Given numbers are 221, 747, 235, 391
The greatest common divisor of numbers 221, 747, 235, 391 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 221, 747, 235, 391 is 1.

1. What is the GCD of 221, 747, 235, 391?

GCD of given numbers 221, 747, 235, 391 is 1

2. How to calculate the greatest common divisor of 221, 747, 235, 391?

We can find the highest common divisor of 221, 747, 235, 391 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, 747, 235, 391 i.e 1.

3. How can I use the GCD of 221, 747, 235, 391Calculator?

Out the numbers 221, 747, 235, 391 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.