GCD of 165, 378, 640, 331 Calculator

Given Input numbers are 165, 378, 640, 331

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

Divisors of 165 :

The positive integer divisors of 165 that completely divides 165 are.

1, 3, 5, 11, 15, 33, 55, 165

Divisors of 378 :

The positive integer divisors of 378 that completely divides 378 are.

1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378

Divisors of 640 :

The positive integer divisors of 640 that completely divides 640 are.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

Divisors of 331 :

The positive integer divisors of 331 that completely divides 331 are.

1, 331

GCD of numbers is the greatest common divisor

So, the GCD (165, 378, 640, 331) = 1.

Given numbers are 165, 378, 640, 331

The list of prime factors of all numbers are

Prime factors of 165 are 3 x 5 x 11

Prime factors of 378 are 2 x 3 x 3 x 3 x 7

Prime factors of 640 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5

Prime factors of 331 are 331

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

Given numbers are 165, 378, 640, 331

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

Apply this formula for all numbers.

Step1:

LCM(165, 378) = 20790

GCD(165, 378) = ( 165 x 378 ) / 20790

= 165 / 378

= 165

Step2:

LCM(3, 640) = 1920

GCD(3, 640) = ( 3 x 640 ) / 1920

= 3 / 640

= 3

Step3:

LCM(1, 331) = 331

GCD(1, 331) = ( 1 x 331 ) / 331

= 1 / 331

= 1

So, Greatest Common Divisor of 165, 378, 640, 331 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 493, 149, 937, 384
• GCD of 472, 180, 780, 959
• GCD of 647, 875, 931, 172
• GCD of 104, 469, 691, 324
• GCD of 189, 300, 106, 572

Given numbers are 165, 378, 640, 331
The greatest common divisor of numbers 165, 378, 640, 331 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 165, 378, 640, 331 is 1.

1. What is the GCD of 165, 378, 640, 331?

GCD of given numbers 165, 378, 640, 331 is 1

2. How to calculate the greatest common divisor of 165, 378, 640, 331?

We can find the highest common divisor of 165, 378, 640, 331 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 165, 378, 640, 331 i.e 1.

3. How can I use the GCD of 165, 378, 640, 331Calculator?

Out the numbers 165, 378, 640, 331 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.