GCD of 820, 394, 643, 998 Calculator

Given Input numbers are 820, 394, 643, 998

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

Divisors of 820 :

The positive integer divisors of 820 that completely divides 820 are.

1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820

Divisors of 394 :

The positive integer divisors of 394 that completely divides 394 are.

1, 2, 197, 394

Divisors of 643 :

The positive integer divisors of 643 that completely divides 643 are.

1, 643

Divisors of 998 :

The positive integer divisors of 998 that completely divides 998 are.

1, 2, 499, 998

GCD of numbers is the greatest common divisor

So, the GCD (820, 394, 643, 998) = 1.

Given numbers are 820, 394, 643, 998

The list of prime factors of all numbers are

Prime factors of 820 are 2 x 2 x 5 x 41

Prime factors of 394 are 2 x 197

Prime factors of 643 are 643

Prime factors of 998 are 2 x 499

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

Given numbers are 820, 394, 643, 998

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

Apply this formula for all numbers.

Step1:

LCM(820, 394) = 161540

GCD(820, 394) = ( 820 x 394 ) / 161540

= 820 / 394

= 820

Step2:

LCM(2, 643) = 1286

GCD(2, 643) = ( 2 x 643 ) / 1286

= 2 / 643

= 2

Step3:

LCM(1, 998) = 998

GCD(1, 998) = ( 1 x 998 ) / 998

= 1 / 998

= 1

So, Greatest Common Divisor of 820, 394, 643, 998 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 836, 958, 609, 795
• GCD of 807, 695, 570, 189
• GCD of 981, 837, 128, 118
• GCD of 254, 722, 889, 687
• GCD of 337, 843, 737, 967

Given numbers are 820, 394, 643, 998
The greatest common divisor of numbers 820, 394, 643, 998 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 820, 394, 643, 998 is 1.

1. What is the GCD of 820, 394, 643, 998?

GCD of given numbers 820, 394, 643, 998 is 1

2. How to calculate the greatest common divisor of 820, 394, 643, 998?

We can find the highest common divisor of 820, 394, 643, 998 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 820, 394, 643, 998 i.e 1.

3. How can I use the GCD of 820, 394, 643, 998Calculator?

Out the numbers 820, 394, 643, 998 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.