GCD of 391, 958, 345, 172 Calculator

Given Input numbers are 391, 958, 345, 172

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

Divisors of 391 :

The positive integer divisors of 391 that completely divides 391 are.

1, 17, 23, 391

Divisors of 958 :

The positive integer divisors of 958 that completely divides 958 are.

1, 2, 479, 958

Divisors of 345 :

The positive integer divisors of 345 that completely divides 345 are.

1, 3, 5, 15, 23, 69, 115, 345

Divisors of 172 :

The positive integer divisors of 172 that completely divides 172 are.

1, 2, 4, 43, 86, 172

GCD of numbers is the greatest common divisor

So, the GCD (391, 958, 345, 172) = 1.

Given numbers are 391, 958, 345, 172

The list of prime factors of all numbers are

Prime factors of 391 are 17 x 23

Prime factors of 958 are 2 x 479

Prime factors of 345 are 3 x 5 x 23

Prime factors of 172 are 2 x 2 x 43

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

Given numbers are 391, 958, 345, 172

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

Apply this formula for all numbers.

Step1:

LCM(391, 958) = 374578

GCD(391, 958) = ( 391 x 958 ) / 374578

= 391 / 958

= 391

Step2:

LCM(1, 345) = 345

GCD(1, 345) = ( 1 x 345 ) / 345

= 1 / 345

= 1

Step3:

LCM(1, 172) = 172

GCD(1, 172) = ( 1 x 172 ) / 172

= 1 / 172

= 1

So, Greatest Common Divisor of 391, 958, 345, 172 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 443, 444, 910, 567
• GCD of 660, 135, 891, 827
• GCD of 762, 112, 418, 449
• GCD of 288, 469, 483, 291
• GCD of 612, 606, 270, 975

Given numbers are 391, 958, 345, 172
The greatest common divisor of numbers 391, 958, 345, 172 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 391, 958, 345, 172 is 1.

1. What is the GCD of 391, 958, 345, 172?

GCD of given numbers 391, 958, 345, 172 is 1

2. How to calculate the greatest common divisor of 391, 958, 345, 172?

We can find the highest common divisor of 391, 958, 345, 172 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 391, 958, 345, 172 i.e 1.

3. How can I use the GCD of 391, 958, 345, 172Calculator?

Out the numbers 391, 958, 345, 172 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.