GCD of 628, 987, 687, 680 Calculator

Given Input numbers are 628, 987, 687, 680

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

Divisors of 628 :

The positive integer divisors of 628 that completely divides 628 are.

1, 2, 4, 157, 314, 628

Divisors of 987 :

The positive integer divisors of 987 that completely divides 987 are.

1, 3, 7, 21, 47, 141, 329, 987

Divisors of 687 :

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

1, 3, 229, 687

Divisors of 680 :

The positive integer divisors of 680 that completely divides 680 are.

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

GCD of numbers is the greatest common divisor

So, the GCD (628, 987, 687, 680) = 1.

Given numbers are 628, 987, 687, 680

The list of prime factors of all numbers are

Prime factors of 628 are 2 x 2 x 157

Prime factors of 987 are 3 x 7 x 47

Prime factors of 687 are 3 x 229

Prime factors of 680 are 2 x 2 x 2 x 5 x 17

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

Given numbers are 628, 987, 687, 680

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

Apply this formula for all numbers.

Step1:

LCM(628, 987) = 619836

GCD(628, 987) = ( 628 x 987 ) / 619836

= 628 / 987

= 628

Step2:

LCM(1, 687) = 687

GCD(1, 687) = ( 1 x 687 ) / 687

= 1 / 687

= 1

Step3:

LCM(1, 680) = 680

GCD(1, 680) = ( 1 x 680 ) / 680

= 1 / 680

= 1

So, Greatest Common Divisor of 628, 987, 687, 680 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 821, 874, 980, 162
• GCD of 918, 875, 110, 268
• GCD of 375, 734, 472, 441
• GCD of 984, 639, 153, 147
• GCD of 773, 224, 294, 887

Given numbers are 628, 987, 687, 680
The greatest common divisor of numbers 628, 987, 687, 680 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 628, 987, 687, 680 is 1.

1. What is the GCD of 628, 987, 687, 680?

GCD of given numbers 628, 987, 687, 680 is 1

2. How to calculate the greatest common divisor of 628, 987, 687, 680?

We can find the highest common divisor of 628, 987, 687, 680 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 628, 987, 687, 680 i.e 1.

3. How can I use the GCD of 628, 987, 687, 680Calculator?

Out the numbers 628, 987, 687, 680 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.