GCD of 420, 210, 61, 518 Calculator

Given Input numbers are 420, 210, 61, 518

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

Divisors of 420 :

The positive integer divisors of 420 that completely divides 420 are.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

Divisors of 210 :

The positive integer divisors of 210 that completely divides 210 are.

1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210

Divisors of 61 :

The positive integer divisors of 61 that completely divides 61 are.

1, 61

Divisors of 518 :

The positive integer divisors of 518 that completely divides 518 are.

1, 2, 7, 14, 37, 74, 259, 518

GCD of numbers is the greatest common divisor

So, the GCD (420, 210, 61, 518) = 1.

Given numbers are 420, 210, 61, 518

The list of prime factors of all numbers are

Prime factors of 420 are 2 x 2 x 3 x 5 x 7

Prime factors of 210 are 2 x 3 x 5 x 7

Prime factors of 61 are 61

Prime factors of 518 are 2 x 7 x 37

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

Given numbers are 420, 210, 61, 518

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

Apply this formula for all numbers.

Step1:

LCM(420, 210) = 420

GCD(420, 210) = ( 420 x 210 ) / 420

= 420 / 210

= 420

Step2:

LCM(210, 61) = 12810

GCD(210, 61) = ( 210 x 61 ) / 12810

= 210 / 61

= 210

Step3:

LCM(1, 518) = 518

GCD(1, 518) = ( 1 x 518 ) / 518

= 1 / 518

= 1

So, Greatest Common Divisor of 420, 210, 61, 518 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 385, 190, 16, 442
• GCD of 486, 427, 77, 651
• GCD of 498, 195, 89, 870
• GCD of 920, 310, 38, 476
• GCD of 260, 585, 80, 121

Given numbers are 420, 210, 61, 518
The greatest common divisor of numbers 420, 210, 61, 518 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 420, 210, 61, 518 is 1.

1. What is the GCD of 420, 210, 61, 518?

GCD of given numbers 420, 210, 61, 518 is 1

2. How to calculate the greatest common divisor of 420, 210, 61, 518?

We can find the highest common divisor of 420, 210, 61, 518 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 420, 210, 61, 518 i.e 1.

3. How can I use the GCD of 420, 210, 61, 518Calculator?

Out the numbers 420, 210, 61, 518 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.