GCD of 249, 390, 238, 643 Calculator

Given Input numbers are 249, 390, 238, 643

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

Divisors of 249 :

The positive integer divisors of 249 that completely divides 249 are.

1, 3, 83, 249

Divisors of 390 :

The positive integer divisors of 390 that completely divides 390 are.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 238 :

The positive integer divisors of 238 that completely divides 238 are.

1, 2, 7, 14, 17, 34, 119, 238

Divisors of 643 :

The positive integer divisors of 643 that completely divides 643 are.

1, 643

GCD of numbers is the greatest common divisor

So, the GCD (249, 390, 238, 643) = 1.

Given numbers are 249, 390, 238, 643

The list of prime factors of all numbers are

Prime factors of 249 are 3 x 83

Prime factors of 390 are 2 x 3 x 5 x 13

Prime factors of 238 are 2 x 7 x 17

Prime factors of 643 are 643

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

Given numbers are 249, 390, 238, 643

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

Apply this formula for all numbers.

Step1:

LCM(249, 390) = 32370

GCD(249, 390) = ( 249 x 390 ) / 32370

= 249 / 390

= 249

Step2:

LCM(3, 238) = 714

GCD(3, 238) = ( 3 x 238 ) / 714

= 3 / 238

= 3

Step3:

LCM(1, 643) = 643

GCD(1, 643) = ( 1 x 643 ) / 643

= 1 / 643

= 1

So, Greatest Common Divisor of 249, 390, 238, 643 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 950, 994, 552, 847
• GCD of 998, 560, 647, 109
• GCD of 994, 760, 104, 804
• GCD of 528, 328, 962, 585
• GCD of 872, 823, 180, 577

Given numbers are 249, 390, 238, 643
The greatest common divisor of numbers 249, 390, 238, 643 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 249, 390, 238, 643 is 1.

1. What is the GCD of 249, 390, 238, 643?

GCD of given numbers 249, 390, 238, 643 is 1

2. How to calculate the greatest common divisor of 249, 390, 238, 643?

We can find the highest common divisor of 249, 390, 238, 643 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 249, 390, 238, 643 i.e 1.

3. How can I use the GCD of 249, 390, 238, 643Calculator?

Out the numbers 249, 390, 238, 643 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.