GCD of 725, 390, 686, 857 Calculator

Given Input numbers are 725, 390, 686, 857

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

Divisors of 725 :

The positive integer divisors of 725 that completely divides 725 are.

1, 5, 25, 29, 145, 725

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 686 :

The positive integer divisors of 686 that completely divides 686 are.

1, 2, 7, 14, 49, 98, 343, 686

Divisors of 857 :

The positive integer divisors of 857 that completely divides 857 are.

1, 857

GCD of numbers is the greatest common divisor

So, the GCD (725, 390, 686, 857) = 1.

Given numbers are 725, 390, 686, 857

The list of prime factors of all numbers are

Prime factors of 725 are 5 x 5 x 29

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

Prime factors of 686 are 2 x 7 x 7 x 7

Prime factors of 857 are 857

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

Given numbers are 725, 390, 686, 857

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

Apply this formula for all numbers.

Step1:

LCM(725, 390) = 56550

GCD(725, 390) = ( 725 x 390 ) / 56550

= 725 / 390

= 725

Step2:

LCM(5, 686) = 3430

GCD(5, 686) = ( 5 x 686 ) / 3430

= 5 / 686

= 5

Step3:

LCM(1, 857) = 857

GCD(1, 857) = ( 1 x 857 ) / 857

= 1 / 857

= 1

So, Greatest Common Divisor of 725, 390, 686, 857 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 973, 886, 726, 996
• GCD of 293, 750, 636, 231
• GCD of 316, 548, 120, 131
• GCD of 481, 701, 854, 451
• GCD of 408, 715, 755, 688

Given numbers are 725, 390, 686, 857
The greatest common divisor of numbers 725, 390, 686, 857 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 725, 390, 686, 857 is 1.

1. What is the GCD of 725, 390, 686, 857?

GCD of given numbers 725, 390, 686, 857 is 1

2. How to calculate the greatest common divisor of 725, 390, 686, 857?

We can find the highest common divisor of 725, 390, 686, 857 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 725, 390, 686, 857 i.e 1.

3. How can I use the GCD of 725, 390, 686, 857Calculator?

Out the numbers 725, 390, 686, 857 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.