GCD of 981, 421, 398, 100 Calculator

Given Input numbers are 981, 421, 398, 100

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

Divisors of 981 :

The positive integer divisors of 981 that completely divides 981 are.

1, 3, 9, 109, 327, 981

Divisors of 421 :

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

1, 421

Divisors of 398 :

The positive integer divisors of 398 that completely divides 398 are.

1, 2, 199, 398

Divisors of 100 :

The positive integer divisors of 100 that completely divides 100 are.

1, 2, 4, 5, 10, 20, 25, 50, 100

GCD of numbers is the greatest common divisor

So, the GCD (981, 421, 398, 100) = 1.

Given numbers are 981, 421, 398, 100

The list of prime factors of all numbers are

Prime factors of 981 are 3 x 3 x 109

Prime factors of 421 are 421

Prime factors of 398 are 2 x 199

Prime factors of 100 are 2 x 2 x 5 x 5

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

Given numbers are 981, 421, 398, 100

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

Apply this formula for all numbers.

Step1:

LCM(981, 421) = 413001

GCD(981, 421) = ( 981 x 421 ) / 413001

= 981 / 421

= 981

Step2:

LCM(1, 398) = 398

GCD(1, 398) = ( 1 x 398 ) / 398

= 1 / 398

= 1

Step3:

LCM(1, 100) = 100

GCD(1, 100) = ( 1 x 100 ) / 100

= 1 / 100

= 1

So, Greatest Common Divisor of 981, 421, 398, 100 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 673, 228, 525, 979
• GCD of 418, 954, 860, 117
• GCD of 130, 410, 562, 846
• GCD of 940, 567, 116, 636
• GCD of 593, 981, 832, 183

Given numbers are 981, 421, 398, 100
The greatest common divisor of numbers 981, 421, 398, 100 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 981, 421, 398, 100 is 1.

1. What is the GCD of 981, 421, 398, 100?

GCD of given numbers 981, 421, 398, 100 is 1

2. How to calculate the greatest common divisor of 981, 421, 398, 100?

We can find the highest common divisor of 981, 421, 398, 100 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 981, 421, 398, 100 i.e 1.

3. How can I use the GCD of 981, 421, 398, 100Calculator?

Out the numbers 981, 421, 398, 100 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.