GCD of 855, 228, 991, 139 Calculator

Given Input numbers are 855, 228, 991, 139

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

Divisors of 855 :

The positive integer divisors of 855 that completely divides 855 are.

1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855

Divisors of 228 :

The positive integer divisors of 228 that completely divides 228 are.

1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228

Divisors of 991 :

The positive integer divisors of 991 that completely divides 991 are.

1, 991

Divisors of 139 :

The positive integer divisors of 139 that completely divides 139 are.

1, 139

GCD of numbers is the greatest common divisor

So, the GCD (855, 228, 991, 139) = 1.

Given numbers are 855, 228, 991, 139

The list of prime factors of all numbers are

Prime factors of 855 are 3 x 3 x 5 x 19

Prime factors of 228 are 2 x 2 x 3 x 19

Prime factors of 991 are 991

Prime factors of 139 are 139

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

Given numbers are 855, 228, 991, 139

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

Apply this formula for all numbers.

Step1:

LCM(855, 228) = 3420

GCD(855, 228) = ( 855 x 228 ) / 3420

= 855 / 228

= 855

Step2:

LCM(57, 991) = 56487

GCD(57, 991) = ( 57 x 991 ) / 56487

= 57 / 991

= 57

Step3:

LCM(1, 139) = 139

GCD(1, 139) = ( 1 x 139 ) / 139

= 1 / 139

= 1

So, Greatest Common Divisor of 855, 228, 991, 139 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 386, 286, 248, 291
• GCD of 283, 224, 222, 452
• GCD of 338, 690, 170, 882
• GCD of 500, 183, 854, 457
• GCD of 817, 985, 182, 363

Given numbers are 855, 228, 991, 139
The greatest common divisor of numbers 855, 228, 991, 139 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 855, 228, 991, 139 is 1.

1. What is the GCD of 855, 228, 991, 139?

GCD of given numbers 855, 228, 991, 139 is 1

2. How to calculate the greatest common divisor of 855, 228, 991, 139?

We can find the highest common divisor of 855, 228, 991, 139 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 855, 228, 991, 139 i.e 1.

3. How can I use the GCD of 855, 228, 991, 139Calculator?

Out the numbers 855, 228, 991, 139 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.