GCD of 178, 988, 831, 420 Calculator

Given Input numbers are 178, 988, 831, 420

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

Divisors of 178 :

The positive integer divisors of 178 that completely divides 178 are.

1, 2, 89, 178

Divisors of 988 :

The positive integer divisors of 988 that completely divides 988 are.

1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988

Divisors of 831 :

The positive integer divisors of 831 that completely divides 831 are.

1, 3, 277, 831

Divisors of 420 :

The positive integer divisors of 420 that completely divides 420 are.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

GCD of numbers is the greatest common divisor

So, the GCD (178, 988, 831, 420) = 1.

Given numbers are 178, 988, 831, 420

The list of prime factors of all numbers are

Prime factors of 178 are 2 x 89

Prime factors of 988 are 2 x 2 x 13 x 19

Prime factors of 831 are 3 x 277

Prime factors of 420 are 2 x 2 x 3 x 5 x 7

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

Given numbers are 178, 988, 831, 420

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

Apply this formula for all numbers.

Step1:

LCM(178, 988) = 87932

GCD(178, 988) = ( 178 x 988 ) / 87932

= 178 / 988

= 178

Step2:

LCM(2, 831) = 1662

GCD(2, 831) = ( 2 x 831 ) / 1662

= 2 / 831

= 2

Step3:

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

= 1 / 420

= 1

So, Greatest Common Divisor of 178, 988, 831, 420 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 433, 139, 928, 118
• GCD of 202, 815, 294, 899
• GCD of 764, 382, 623, 400
• GCD of 724, 932, 820, 806
• GCD of 249, 338, 321, 356

Given numbers are 178, 988, 831, 420
The greatest common divisor of numbers 178, 988, 831, 420 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 178, 988, 831, 420 is 1.

1. What is the GCD of 178, 988, 831, 420?

GCD of given numbers 178, 988, 831, 420 is 1

2. How to calculate the greatest common divisor of 178, 988, 831, 420?

We can find the highest common divisor of 178, 988, 831, 420 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 178, 988, 831, 420 i.e 1.

3. How can I use the GCD of 178, 988, 831, 420Calculator?

Out the numbers 178, 988, 831, 420 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.