GCD of 438, 656, 949, 245 Calculator

Given Input numbers are 438, 656, 949, 245

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

Divisors of 438 :

The positive integer divisors of 438 that completely divides 438 are.

1, 2, 3, 6, 73, 146, 219, 438

Divisors of 656 :

The positive integer divisors of 656 that completely divides 656 are.

1, 2, 4, 8, 16, 41, 82, 164, 328, 656

Divisors of 949 :

The positive integer divisors of 949 that completely divides 949 are.

1, 13, 73, 949

Divisors of 245 :

The positive integer divisors of 245 that completely divides 245 are.

1, 5, 7, 35, 49, 245

GCD of numbers is the greatest common divisor

So, the GCD (438, 656, 949, 245) = 1.

Given numbers are 438, 656, 949, 245

The list of prime factors of all numbers are

Prime factors of 438 are 2 x 3 x 73

Prime factors of 656 are 2 x 2 x 2 x 2 x 41

Prime factors of 949 are 13 x 73

Prime factors of 245 are 5 x 7 x 7

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

Given numbers are 438, 656, 949, 245

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

Apply this formula for all numbers.

Step1:

LCM(438, 656) = 143664

GCD(438, 656) = ( 438 x 656 ) / 143664

= 438 / 656

= 438

Step2:

LCM(2, 949) = 1898

GCD(2, 949) = ( 2 x 949 ) / 1898

= 2 / 949

= 2

Step3:

LCM(1, 245) = 245

GCD(1, 245) = ( 1 x 245 ) / 245

= 1 / 245

= 1

So, Greatest Common Divisor of 438, 656, 949, 245 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 489, 256, 346, 940
• GCD of 168, 247, 706, 892
• GCD of 376, 567, 618, 632
• GCD of 644, 242, 862, 711
• GCD of 520, 131, 642, 109

Given numbers are 438, 656, 949, 245
The greatest common divisor of numbers 438, 656, 949, 245 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 438, 656, 949, 245 is 1.

1. What is the GCD of 438, 656, 949, 245?

GCD of given numbers 438, 656, 949, 245 is 1

2. How to calculate the greatest common divisor of 438, 656, 949, 245?

We can find the highest common divisor of 438, 656, 949, 245 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 438, 656, 949, 245 i.e 1.

3. How can I use the GCD of 438, 656, 949, 245Calculator?

Out the numbers 438, 656, 949, 245 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.