GCD of 705, 694, 830, 390 Calculator

Given Input numbers are 705, 694, 830, 390

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

Divisors of 705 :

The positive integer divisors of 705 that completely divides 705 are.

1, 3, 5, 15, 47, 141, 235, 705

Divisors of 694 :

The positive integer divisors of 694 that completely divides 694 are.

1, 2, 347, 694

Divisors of 830 :

The positive integer divisors of 830 that completely divides 830 are.

1, 2, 5, 10, 83, 166, 415, 830

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

GCD of numbers is the greatest common divisor

So, the GCD (705, 694, 830, 390) = 1.

Given numbers are 705, 694, 830, 390

The list of prime factors of all numbers are

Prime factors of 705 are 3 x 5 x 47

Prime factors of 694 are 2 x 347

Prime factors of 830 are 2 x 5 x 83

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

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

Given numbers are 705, 694, 830, 390

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

Apply this formula for all numbers.

Step1:

LCM(705, 694) = 489270

GCD(705, 694) = ( 705 x 694 ) / 489270

= 705 / 694

= 705

Step2:

LCM(1, 830) = 830

GCD(1, 830) = ( 1 x 830 ) / 830

= 1 / 830

= 1

Step3:

LCM(1, 390) = 390

GCD(1, 390) = ( 1 x 390 ) / 390

= 1 / 390

= 1

So, Greatest Common Divisor of 705, 694, 830, 390 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 423, 978, 178, 318
• GCD of 123, 742, 988, 345
• GCD of 908, 179, 293, 496
• GCD of 635, 218, 660, 363
• GCD of 758, 991, 542, 878

Given numbers are 705, 694, 830, 390
The greatest common divisor of numbers 705, 694, 830, 390 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 705, 694, 830, 390 is 1.

1. What is the GCD of 705, 694, 830, 390?

GCD of given numbers 705, 694, 830, 390 is 1

2. How to calculate the greatest common divisor of 705, 694, 830, 390?

We can find the highest common divisor of 705, 694, 830, 390 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 705, 694, 830, 390 i.e 1.

3. How can I use the GCD of 705, 694, 830, 390Calculator?

Out the numbers 705, 694, 830, 390 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.