GCD of 820, 771, 218, 221 Calculator

Given Input numbers are 820, 771, 218, 221

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 771 :

The positive integer divisors of 771 that completely divides 771 are.

1, 3, 257, 771

Divisors of 218 :

The positive integer divisors of 218 that completely divides 218 are.

1, 2, 109, 218

Divisors of 221 :

The positive integer divisors of 221 that completely divides 221 are.

1, 13, 17, 221

GCD of numbers is the greatest common divisor

So, the GCD (820, 771, 218, 221) = 1.

Given numbers are 820, 771, 218, 221

The list of prime factors of all numbers are

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

Prime factors of 771 are 3 x 257

Prime factors of 218 are 2 x 109

Prime factors of 221 are 13 x 17

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

Given numbers are 820, 771, 218, 221

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

Apply this formula for all numbers.

Step1:

LCM(820, 771) = 632220

GCD(820, 771) = ( 820 x 771 ) / 632220

= 820 / 771

= 820

Step2:

LCM(1, 218) = 218

GCD(1, 218) = ( 1 x 218 ) / 218

= 1 / 218

= 1

Step3:

LCM(1, 221) = 221

GCD(1, 221) = ( 1 x 221 ) / 221

= 1 / 221

= 1

So, Greatest Common Divisor of 820, 771, 218, 221 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 425, 303, 734, 680
• GCD of 884, 782, 687, 643
• GCD of 982, 850, 886, 890
• GCD of 923, 559, 511, 934
• GCD of 344, 356, 192, 693

Given numbers are 820, 771, 218, 221
The greatest common divisor of numbers 820, 771, 218, 221 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 820, 771, 218, 221 is 1.

1. What is the GCD of 820, 771, 218, 221?

GCD of given numbers 820, 771, 218, 221 is 1

2. How to calculate the greatest common divisor of 820, 771, 218, 221?

We can find the highest common divisor of 820, 771, 218, 221 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, 771, 218, 221 i.e 1.

3. How can I use the GCD of 820, 771, 218, 221Calculator?

Out the numbers 820, 771, 218, 221 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.