GCD of 25, 13, 85, 30 Calculator

Given Input numbers are 25, 13, 85, 30

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

Divisors of 25 :

The positive integer divisors of 25 that completely divides 25 are.

1, 5, 25

Divisors of 13 :

The positive integer divisors of 13 that completely divides 13 are.

1, 13

Divisors of 85 :

The positive integer divisors of 85 that completely divides 85 are.

1, 5, 17, 85

Divisors of 30 :

The positive integer divisors of 30 that completely divides 30 are.

1, 2, 3, 5, 6, 10, 15, 30

GCD of numbers is the greatest common divisor

So, the GCD (25, 13, 85, 30) = 1.

Given numbers are 25, 13, 85, 30

The list of prime factors of all numbers are

Prime factors of 25 are 5 x 5

Prime factors of 13 are 13

Prime factors of 85 are 5 x 17

Prime factors of 30 are 2 x 3 x 5

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

Given numbers are 25, 13, 85, 30

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

Apply this formula for all numbers.

Step1:

LCM(25, 13) = 325

GCD(25, 13) = ( 25 x 13 ) / 325

= 25 / 13

= 25

Step2:

LCM(1, 85) = 85

GCD(1, 85) = ( 1 x 85 ) / 85

= 1 / 85

= 1

Step3:

LCM(1, 30) = 30

GCD(1, 30) = ( 1 x 30 ) / 30

= 1 / 30

= 1

So, Greatest Common Divisor of 25, 13, 85, 30 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 78, 25, 88, 10
• GCD of 58, 86, 51, 36
• GCD of 75, 22, 62, 76
• GCD of 94, 39, 18, 56
• GCD of 93, 44, 12, 73

Given numbers are 25, 13, 85, 30
The greatest common divisor of numbers 25, 13, 85, 30 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 25, 13, 85, 30 is 1.

1. What is the GCD of 25, 13, 85, 30?

GCD of given numbers 25, 13, 85, 30 is 1

2. How to calculate the greatest common divisor of 25, 13, 85, 30?

We can find the highest common divisor of 25, 13, 85, 30 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 25, 13, 85, 30 i.e 1.

3. How can I use the GCD of 25, 13, 85, 30Calculator?

Out the numbers 25, 13, 85, 30 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.