GCD of 21, 22, 98, 55 Calculator

Given Input numbers are 21, 22, 98, 55

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

Divisors of 21 :

The positive integer divisors of 21 that completely divides 21 are.

1, 3, 7, 21

Divisors of 22 :

The positive integer divisors of 22 that completely divides 22 are.

1, 2, 11, 22

Divisors of 98 :

The positive integer divisors of 98 that completely divides 98 are.

1, 2, 7, 14, 49, 98

Divisors of 55 :

The positive integer divisors of 55 that completely divides 55 are.

1, 5, 11, 55

GCD of numbers is the greatest common divisor

So, the GCD (21, 22, 98, 55) = 1.

Given numbers are 21, 22, 98, 55

The list of prime factors of all numbers are

Prime factors of 21 are 3 x 7

Prime factors of 22 are 2 x 11

Prime factors of 98 are 2 x 7 x 7

Prime factors of 55 are 5 x 11

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

Given numbers are 21, 22, 98, 55

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

Apply this formula for all numbers.

Step1:

LCM(21, 22) = 462

GCD(21, 22) = ( 21 x 22 ) / 462

= 21 / 22

= 21

Step2:

LCM(1, 98) = 98

GCD(1, 98) = ( 1 x 98 ) / 98

= 1 / 98

= 1

Step3:

LCM(1, 55) = 55

GCD(1, 55) = ( 1 x 55 ) / 55

= 1 / 55

= 1

So, Greatest Common Divisor of 21, 22, 98, 55 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 60, 23, 46, 57
• GCD of 12, 46, 69, 77
• GCD of 73, 16, 74, 34
• GCD of 41, 78, 38, 23
• GCD of 86, 52, 81, 75

Given numbers are 21, 22, 98, 55
The greatest common divisor of numbers 21, 22, 98, 55 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 21, 22, 98, 55 is 1.

1. What is the GCD of 21, 22, 98, 55?

GCD of given numbers 21, 22, 98, 55 is 1

2. How to calculate the greatest common divisor of 21, 22, 98, 55?

We can find the highest common divisor of 21, 22, 98, 55 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 21, 22, 98, 55 i.e 1.

3. How can I use the GCD of 21, 22, 98, 55Calculator?

Out the numbers 21, 22, 98, 55 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.