GCD of 138, 665, 40, 771 Calculator

Given Input numbers are 138, 665, 40, 771

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

Divisors of 138 :

The positive integer divisors of 138 that completely divides 138 are.

1, 2, 3, 6, 23, 46, 69, 138

Divisors of 665 :

The positive integer divisors of 665 that completely divides 665 are.

1, 5, 7, 19, 35, 95, 133, 665

Divisors of 40 :

The positive integer divisors of 40 that completely divides 40 are.

1, 2, 4, 5, 8, 10, 20, 40

Divisors of 771 :

The positive integer divisors of 771 that completely divides 771 are.

1, 3, 257, 771

GCD of numbers is the greatest common divisor

So, the GCD (138, 665, 40, 771) = 1.

Given numbers are 138, 665, 40, 771

The list of prime factors of all numbers are

Prime factors of 138 are 2 x 3 x 23

Prime factors of 665 are 5 x 7 x 19

Prime factors of 40 are 2 x 2 x 2 x 5

Prime factors of 771 are 3 x 257

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

Given numbers are 138, 665, 40, 771

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

Apply this formula for all numbers.

Step1:

LCM(138, 665) = 91770

GCD(138, 665) = ( 138 x 665 ) / 91770

= 138 / 665

= 138

Step2:

LCM(1, 40) = 40

GCD(1, 40) = ( 1 x 40 ) / 40

= 1 / 40

= 1

Step3:

LCM(1, 771) = 771

GCD(1, 771) = ( 1 x 771 ) / 771

= 1 / 771

= 1

So, Greatest Common Divisor of 138, 665, 40, 771 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 177, 918, 57, 881
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• GCD of 945, 978, 27, 500

Given numbers are 138, 665, 40, 771
The greatest common divisor of numbers 138, 665, 40, 771 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 138, 665, 40, 771 is 1.

1. What is the GCD of 138, 665, 40, 771?

GCD of given numbers 138, 665, 40, 771 is 1

2. How to calculate the greatest common divisor of 138, 665, 40, 771?

We can find the highest common divisor of 138, 665, 40, 771 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 138, 665, 40, 771 i.e 1.

3. How can I use the GCD of 138, 665, 40, 771Calculator?

Out the numbers 138, 665, 40, 771 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.