GCD of 123, 215, 686, 124 Calculator

Given Input numbers are 123, 215, 686, 124

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

Divisors of 123 :

The positive integer divisors of 123 that completely divides 123 are.

1, 3, 41, 123

Divisors of 215 :

The positive integer divisors of 215 that completely divides 215 are.

1, 5, 43, 215

Divisors of 686 :

The positive integer divisors of 686 that completely divides 686 are.

1, 2, 7, 14, 49, 98, 343, 686

Divisors of 124 :

The positive integer divisors of 124 that completely divides 124 are.

1, 2, 4, 31, 62, 124

GCD of numbers is the greatest common divisor

So, the GCD (123, 215, 686, 124) = 1.

Given numbers are 123, 215, 686, 124

The list of prime factors of all numbers are

Prime factors of 123 are 3 x 41

Prime factors of 215 are 5 x 43

Prime factors of 686 are 2 x 7 x 7 x 7

Prime factors of 124 are 2 x 2 x 31

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

Given numbers are 123, 215, 686, 124

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

Apply this formula for all numbers.

Step1:

LCM(123, 215) = 26445

GCD(123, 215) = ( 123 x 215 ) / 26445

= 123 / 215

= 123

Step2:

LCM(1, 686) = 686

GCD(1, 686) = ( 1 x 686 ) / 686

= 1 / 686

= 1

Step3:

LCM(1, 124) = 124

GCD(1, 124) = ( 1 x 124 ) / 124

= 1 / 124

= 1

So, Greatest Common Divisor of 123, 215, 686, 124 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 822, 187, 423, 851
• GCD of 482, 943, 423, 538
• GCD of 761, 477, 898, 850
• GCD of 406, 447, 799, 265
• GCD of 787, 299, 743, 142

Given numbers are 123, 215, 686, 124
The greatest common divisor of numbers 123, 215, 686, 124 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 123, 215, 686, 124 is 1.

1. What is the GCD of 123, 215, 686, 124?

GCD of given numbers 123, 215, 686, 124 is 1

2. How to calculate the greatest common divisor of 123, 215, 686, 124?

We can find the highest common divisor of 123, 215, 686, 124 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 123, 215, 686, 124 i.e 1.

3. How can I use the GCD of 123, 215, 686, 124Calculator?

Out the numbers 123, 215, 686, 124 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.