GCD of 390, 542, 458, 221 Calculator

Given Input numbers are 390, 542, 458, 221

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

Divisors of 390 :

The positive integer divisors of 390 that completely divides 390 are.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 542 :

The positive integer divisors of 542 that completely divides 542 are.

1, 2, 271, 542

Divisors of 458 :

The positive integer divisors of 458 that completely divides 458 are.

1, 2, 229, 458

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 (390, 542, 458, 221) = 1.

Given numbers are 390, 542, 458, 221

The list of prime factors of all numbers are

Prime factors of 390 are 2 x 3 x 5 x 13

Prime factors of 542 are 2 x 271

Prime factors of 458 are 2 x 229

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 390, 542, 458, 221

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

Apply this formula for all numbers.

Step1:

LCM(390, 542) = 105690

GCD(390, 542) = ( 390 x 542 ) / 105690

= 390 / 542

= 390

Step2:

LCM(2, 458) = 458

GCD(2, 458) = ( 2 x 458 ) / 458

= 2 / 458

= 2

Step3:

LCM(2, 221) = 442

GCD(2, 221) = ( 2 x 221 ) / 442

= 2 / 221

= 2

So, Greatest Common Divisor of 390, 542, 458, 221 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 396, 181, 715, 768
• GCD of 308, 957, 846, 146
• GCD of 567, 522, 458, 843
• GCD of 735, 116, 568, 220
• GCD of 194, 502, 351, 585

Given numbers are 390, 542, 458, 221
The greatest common divisor of numbers 390, 542, 458, 221 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 390, 542, 458, 221 is 1.

1. What is the GCD of 390, 542, 458, 221?

GCD of given numbers 390, 542, 458, 221 is 1

2. How to calculate the greatest common divisor of 390, 542, 458, 221?

We can find the highest common divisor of 390, 542, 458, 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 390, 542, 458, 221 i.e 1.

3. How can I use the GCD of 390, 542, 458, 221Calculator?

Out the numbers 390, 542, 458, 221 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.