GCD of 147, 289, 391, 438 Calculator

Given Input numbers are 147, 289, 391, 438

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

Divisors of 147 :

The positive integer divisors of 147 that completely divides 147 are.

1, 3, 7, 21, 49, 147

Divisors of 289 :

The positive integer divisors of 289 that completely divides 289 are.

1, 17, 289

Divisors of 391 :

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

1, 17, 23, 391

Divisors of 438 :

The positive integer divisors of 438 that completely divides 438 are.

1, 2, 3, 6, 73, 146, 219, 438

GCD of numbers is the greatest common divisor

So, the GCD (147, 289, 391, 438) = 1.

Given numbers are 147, 289, 391, 438

The list of prime factors of all numbers are

Prime factors of 147 are 3 x 7 x 7

Prime factors of 289 are 17 x 17

Prime factors of 391 are 17 x 23

Prime factors of 438 are 2 x 3 x 73

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

Given numbers are 147, 289, 391, 438

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

Apply this formula for all numbers.

Step1:

LCM(147, 289) = 42483

GCD(147, 289) = ( 147 x 289 ) / 42483

= 147 / 289

= 147

Step2:

LCM(1, 391) = 391

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

= 1 / 391

= 1

Step3:

LCM(1, 438) = 438

GCD(1, 438) = ( 1 x 438 ) / 438

= 1 / 438

= 1

So, Greatest Common Divisor of 147, 289, 391, 438 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 453, 777, 863, 787
• GCD of 394, 532, 350, 565
• GCD of 728, 380, 799, 314
• GCD of 452, 164, 108, 203
• GCD of 429, 276, 991, 714

Given numbers are 147, 289, 391, 438
The greatest common divisor of numbers 147, 289, 391, 438 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 147, 289, 391, 438 is 1.

1. What is the GCD of 147, 289, 391, 438?

GCD of given numbers 147, 289, 391, 438 is 1

2. How to calculate the greatest common divisor of 147, 289, 391, 438?

We can find the highest common divisor of 147, 289, 391, 438 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 147, 289, 391, 438 i.e 1.

3. How can I use the GCD of 147, 289, 391, 438Calculator?

Out the numbers 147, 289, 391, 438 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.