GCD of 798, 653, 158, 420 Calculator

Given Input numbers are 798, 653, 158, 420

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

Divisors of 798 :

The positive integer divisors of 798 that completely divides 798 are.

1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798

Divisors of 653 :

The positive integer divisors of 653 that completely divides 653 are.

1, 653

Divisors of 158 :

The positive integer divisors of 158 that completely divides 158 are.

1, 2, 79, 158

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 (798, 653, 158, 420) = 1.

Given numbers are 798, 653, 158, 420

The list of prime factors of all numbers are

Prime factors of 798 are 2 x 3 x 7 x 19

Prime factors of 653 are 653

Prime factors of 158 are 2 x 79

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 798, 653, 158, 420

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

Apply this formula for all numbers.

Step1:

LCM(798, 653) = 521094

GCD(798, 653) = ( 798 x 653 ) / 521094

= 798 / 653

= 798

Step2:

LCM(1, 158) = 158

GCD(1, 158) = ( 1 x 158 ) / 158

= 1 / 158

= 1

Step3:

LCM(1, 420) = 420

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

= 1 / 420

= 1

So, Greatest Common Divisor of 798, 653, 158, 420 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 226, 707, 203, 404
• GCD of 189, 643, 127, 308
• GCD of 905, 407, 778, 459
• GCD of 134, 613, 345, 681
• GCD of 635, 246, 551, 666

Given numbers are 798, 653, 158, 420
The greatest common divisor of numbers 798, 653, 158, 420 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 798, 653, 158, 420 is 1.

1. What is the GCD of 798, 653, 158, 420?

GCD of given numbers 798, 653, 158, 420 is 1

2. How to calculate the greatest common divisor of 798, 653, 158, 420?

We can find the highest common divisor of 798, 653, 158, 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 798, 653, 158, 420 i.e 1.

3. How can I use the GCD of 798, 653, 158, 420Calculator?

Out the numbers 798, 653, 158, 420 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.