GCD of 215, 821, 358, 688 Calculator

Given Input numbers are 215, 821, 358, 688

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

Divisors of 215 :

The positive integer divisors of 215 that completely divides 215 are.

1, 5, 43, 215

Divisors of 821 :

The positive integer divisors of 821 that completely divides 821 are.

1, 821

Divisors of 358 :

The positive integer divisors of 358 that completely divides 358 are.

1, 2, 179, 358

Divisors of 688 :

The positive integer divisors of 688 that completely divides 688 are.

1, 2, 4, 8, 16, 43, 86, 172, 344, 688

GCD of numbers is the greatest common divisor

So, the GCD (215, 821, 358, 688) = 1.

Given numbers are 215, 821, 358, 688

The list of prime factors of all numbers are

Prime factors of 215 are 5 x 43

Prime factors of 821 are 821

Prime factors of 358 are 2 x 179

Prime factors of 688 are 2 x 2 x 2 x 2 x 43

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

Given numbers are 215, 821, 358, 688

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

Apply this formula for all numbers.

Step1:

LCM(215, 821) = 176515

GCD(215, 821) = ( 215 x 821 ) / 176515

= 215 / 821

= 215

Step2:

LCM(1, 358) = 358

GCD(1, 358) = ( 1 x 358 ) / 358

= 1 / 358

= 1

Step3:

LCM(1, 688) = 688

GCD(1, 688) = ( 1 x 688 ) / 688

= 1 / 688

= 1

So, Greatest Common Divisor of 215, 821, 358, 688 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 453, 626, 941, 865
• GCD of 610, 851, 944, 487
• GCD of 225, 972, 545, 467
• GCD of 243, 682, 131, 975
• GCD of 523, 848, 773, 559

Given numbers are 215, 821, 358, 688
The greatest common divisor of numbers 215, 821, 358, 688 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 215, 821, 358, 688 is 1.

1. What is the GCD of 215, 821, 358, 688?

GCD of given numbers 215, 821, 358, 688 is 1

2. How to calculate the greatest common divisor of 215, 821, 358, 688?

We can find the highest common divisor of 215, 821, 358, 688 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 215, 821, 358, 688 i.e 1.

3. How can I use the GCD of 215, 821, 358, 688Calculator?

Out the numbers 215, 821, 358, 688 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.