GCD of 687, 651, 398, 942 Calculator

Given Input numbers are 687, 651, 398, 942

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

Divisors of 687 :

The positive integer divisors of 687 that completely divides 687 are.

1, 3, 229, 687

Divisors of 651 :

The positive integer divisors of 651 that completely divides 651 are.

1, 3, 7, 21, 31, 93, 217, 651

Divisors of 398 :

The positive integer divisors of 398 that completely divides 398 are.

1, 2, 199, 398

Divisors of 942 :

The positive integer divisors of 942 that completely divides 942 are.

1, 2, 3, 6, 157, 314, 471, 942

GCD of numbers is the greatest common divisor

So, the GCD (687, 651, 398, 942) = 1.

Given numbers are 687, 651, 398, 942

The list of prime factors of all numbers are

Prime factors of 687 are 3 x 229

Prime factors of 651 are 3 x 7 x 31

Prime factors of 398 are 2 x 199

Prime factors of 942 are 2 x 3 x 157

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

Given numbers are 687, 651, 398, 942

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

Apply this formula for all numbers.

Step1:

LCM(687, 651) = 149079

GCD(687, 651) = ( 687 x 651 ) / 149079

= 687 / 651

= 687

Step2:

LCM(3, 398) = 1194

GCD(3, 398) = ( 3 x 398 ) / 1194

= 3 / 398

= 3

Step3:

LCM(1, 942) = 942

GCD(1, 942) = ( 1 x 942 ) / 942

= 1 / 942

= 1

So, Greatest Common Divisor of 687, 651, 398, 942 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 728, 618, 418, 975
• GCD of 963, 525, 294, 472
• GCD of 924, 248, 364, 739
• GCD of 508, 734, 301, 844
• GCD of 631, 541, 733, 936

Given numbers are 687, 651, 398, 942
The greatest common divisor of numbers 687, 651, 398, 942 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 687, 651, 398, 942 is 1.

1. What is the GCD of 687, 651, 398, 942?

GCD of given numbers 687, 651, 398, 942 is 1

2. How to calculate the greatest common divisor of 687, 651, 398, 942?

We can find the highest common divisor of 687, 651, 398, 942 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 687, 651, 398, 942 i.e 1.

3. How can I use the GCD of 687, 651, 398, 942Calculator?

Out the numbers 687, 651, 398, 942 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.