GCD of 145, 404, 21 Calculator

Given Input numbers are 145, 404, 21

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

Divisors of 145 :

The positive integer divisors of 145 that completely divides 145 are.

1, 5, 29, 145

Divisors of 404 :

The positive integer divisors of 404 that completely divides 404 are.

1, 2, 4, 101, 202, 404

Divisors of 21 :

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

1, 3, 7, 21

GCD of numbers is the greatest common divisor

So, the GCD (145, 404, 21) = 1.

Given numbers are 145, 404, 21

The list of prime factors of all numbers are

Prime factors of 145 are 5 x 29

Prime factors of 404 are 2 x 2 x 101

Prime factors of 21 are 3 x 7

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

Given numbers are 145, 404, 21

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

Apply this formula for all numbers.

Step1:

LCM(145, 404) = 58580

GCD(145, 404) = ( 145 x 404 ) / 58580

= 145 / 404

= 145

Step2:

LCM(1, 21) = 21

GCD(1, 21) = ( 1 x 21 ) / 21

= 1 / 21

= 1

So, Greatest Common Divisor of 145, 404, 21 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 157, 871, 52
• GCD of 349, 930, 23
• GCD of 574, 552, 78
• GCD of 148, 789, 96
• GCD of 643, 551, 95

Given numbers are 145, 404, 21
The greatest common divisor of numbers 145, 404, 21 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 145, 404, 21 is 1.

1. What is the GCD of 145, 404, 21?

GCD of given numbers 145, 404, 21 is 1

2. How to calculate the greatest common divisor of 145, 404, 21?

We can find the highest common divisor of 145, 404, 21 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 145, 404, 21 i.e 1.

3. How can I use the GCD of 145, 404, 21Calculator?

Out the numbers 145, 404, 21 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.