GCD of 145, 715, 424, 221 Calculator

Given Input numbers are 145, 715, 424, 221

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 715 :

The positive integer divisors of 715 that completely divides 715 are.

1, 5, 11, 13, 55, 65, 143, 715

Divisors of 424 :

The positive integer divisors of 424 that completely divides 424 are.

1, 2, 4, 8, 53, 106, 212, 424

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 (145, 715, 424, 221) = 1.

Given numbers are 145, 715, 424, 221

The list of prime factors of all numbers are

Prime factors of 145 are 5 x 29

Prime factors of 715 are 5 x 11 x 13

Prime factors of 424 are 2 x 2 x 2 x 53

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 145, 715, 424, 221

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

Apply this formula for all numbers.

Step1:

LCM(145, 715) = 20735

GCD(145, 715) = ( 145 x 715 ) / 20735

= 145 / 715

= 145

Step2:

LCM(5, 424) = 2120

GCD(5, 424) = ( 5 x 424 ) / 2120

= 5 / 424

= 5

Step3:

LCM(1, 221) = 221

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

= 1 / 221

= 1

So, Greatest Common Divisor of 145, 715, 424, 221 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 551, 727, 371, 243
• GCD of 825, 362, 493, 440
• GCD of 858, 894, 454, 779
• GCD of 391, 270, 223, 651
• GCD of 171, 828, 297, 395

Given numbers are 145, 715, 424, 221
The greatest common divisor of numbers 145, 715, 424, 221 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 145, 715, 424, 221 is 1.

1. What is the GCD of 145, 715, 424, 221?

GCD of given numbers 145, 715, 424, 221 is 1

2. How to calculate the greatest common divisor of 145, 715, 424, 221?

We can find the highest common divisor of 145, 715, 424, 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 145, 715, 424, 221 i.e 1.

3. How can I use the GCD of 145, 715, 424, 221Calculator?

Out the numbers 145, 715, 424, 221 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.