GCD of 243, 156, 690, 124 Calculator

Given Input numbers are 243, 156, 690, 124

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

Divisors of 243 :

The positive integer divisors of 243 that completely divides 243 are.

1, 3, 9, 27, 81, 243

Divisors of 156 :

The positive integer divisors of 156 that completely divides 156 are.

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156

Divisors of 690 :

The positive integer divisors of 690 that completely divides 690 are.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

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 (243, 156, 690, 124) = 1.

Given numbers are 243, 156, 690, 124

The list of prime factors of all numbers are

Prime factors of 243 are 3 x 3 x 3 x 3 x 3

Prime factors of 156 are 2 x 2 x 3 x 13

Prime factors of 690 are 2 x 3 x 5 x 23

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 243, 156, 690, 124

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

Apply this formula for all numbers.

Step1:

LCM(243, 156) = 12636

GCD(243, 156) = ( 243 x 156 ) / 12636

= 243 / 156

= 243

Step2:

LCM(3, 690) = 690

GCD(3, 690) = ( 3 x 690 ) / 690

= 3 / 690

= 3

Step3:

LCM(3, 124) = 372

GCD(3, 124) = ( 3 x 124 ) / 372

= 3 / 124

= 3

So, Greatest Common Divisor of 243, 156, 690, 124 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 298, 947, 334, 507
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• GCD of 227, 670, 507, 168
• GCD of 248, 523, 672, 614
• GCD of 679, 383, 587, 744

Given numbers are 243, 156, 690, 124
The greatest common divisor of numbers 243, 156, 690, 124 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 243, 156, 690, 124 is 1.

1. What is the GCD of 243, 156, 690, 124?

GCD of given numbers 243, 156, 690, 124 is 1

2. How to calculate the greatest common divisor of 243, 156, 690, 124?

We can find the highest common divisor of 243, 156, 690, 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 243, 156, 690, 124 i.e 1.

3. How can I use the GCD of 243, 156, 690, 124Calculator?

Out the numbers 243, 156, 690, 124 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.