GCD of 138, 815, 248, 961 Calculator

Given Input numbers are 138, 815, 248, 961

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 815 :

The positive integer divisors of 815 that completely divides 815 are.

1, 5, 163, 815

Divisors of 248 :

The positive integer divisors of 248 that completely divides 248 are.

1, 2, 4, 8, 31, 62, 124, 248

Divisors of 961 :

The positive integer divisors of 961 that completely divides 961 are.

1, 31, 961

GCD of numbers is the greatest common divisor

So, the GCD (138, 815, 248, 961) = 1.

Given numbers are 138, 815, 248, 961

The list of prime factors of all numbers are

Prime factors of 138 are 2 x 3 x 23

Prime factors of 815 are 5 x 163

Prime factors of 248 are 2 x 2 x 2 x 31

Prime factors of 961 are 31 x 31

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

Given numbers are 138, 815, 248, 961

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

Apply this formula for all numbers.

Step1:

LCM(138, 815) = 112470

GCD(138, 815) = ( 138 x 815 ) / 112470

= 138 / 815

= 138

Step2:

LCM(1, 248) = 248

GCD(1, 248) = ( 1 x 248 ) / 248

= 1 / 248

= 1

Step3:

LCM(1, 961) = 961

GCD(1, 961) = ( 1 x 961 ) / 961

= 1 / 961

= 1

So, Greatest Common Divisor of 138, 815, 248, 961 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 317, 704, 880, 420
• GCD of 915, 533, 468, 416
• GCD of 344, 759, 371, 131
• GCD of 372, 696, 782, 631
• GCD of 105, 946, 130, 818

Given numbers are 138, 815, 248, 961
The greatest common divisor of numbers 138, 815, 248, 961 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 138, 815, 248, 961 is 1.

1. What is the GCD of 138, 815, 248, 961?

GCD of given numbers 138, 815, 248, 961 is 1

2. How to calculate the greatest common divisor of 138, 815, 248, 961?

We can find the highest common divisor of 138, 815, 248, 961 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, 815, 248, 961 i.e 1.

3. How can I use the GCD of 138, 815, 248, 961Calculator?

Out the numbers 138, 815, 248, 961 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.