GCD of 421, 221, 788, 287 Calculator

Given Input numbers are 421, 221, 788, 287

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

Divisors of 421 :

The positive integer divisors of 421 that completely divides 421 are.

1, 421

Divisors of 221 :

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

1, 13, 17, 221

Divisors of 788 :

The positive integer divisors of 788 that completely divides 788 are.

1, 2, 4, 197, 394, 788

Divisors of 287 :

The positive integer divisors of 287 that completely divides 287 are.

1, 7, 41, 287

GCD of numbers is the greatest common divisor

So, the GCD (421, 221, 788, 287) = 1.

Given numbers are 421, 221, 788, 287

The list of prime factors of all numbers are

Prime factors of 421 are 421

Prime factors of 221 are 13 x 17

Prime factors of 788 are 2 x 2 x 197

Prime factors of 287 are 7 x 41

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

Given numbers are 421, 221, 788, 287

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

Apply this formula for all numbers.

Step1:

LCM(421, 221) = 93041

GCD(421, 221) = ( 421 x 221 ) / 93041

= 421 / 221

= 421

Step2:

LCM(1, 788) = 788

GCD(1, 788) = ( 1 x 788 ) / 788

= 1 / 788

= 1

Step3:

LCM(1, 287) = 287

GCD(1, 287) = ( 1 x 287 ) / 287

= 1 / 287

= 1

So, Greatest Common Divisor of 421, 221, 788, 287 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 250, 232, 516, 632
• GCD of 352, 350, 854, 228
• GCD of 942, 449, 986, 527
• GCD of 822, 148, 677, 585
• GCD of 273, 333, 136, 645

Given numbers are 421, 221, 788, 287
The greatest common divisor of numbers 421, 221, 788, 287 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 421, 221, 788, 287 is 1.

1. What is the GCD of 421, 221, 788, 287?

GCD of given numbers 421, 221, 788, 287 is 1

2. How to calculate the greatest common divisor of 421, 221, 788, 287?

We can find the highest common divisor of 421, 221, 788, 287 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 421, 221, 788, 287 i.e 1.

3. How can I use the GCD of 421, 221, 788, 287Calculator?

Out the numbers 421, 221, 788, 287 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.