Online GCD Calculator is useful to find the GCD of 621, 840, 706, 636 quickly. Get the easiest ways to solve the greatest common divisor of 621, 840, 706, 636 i.e 1 in different methods as follows.
Given Input numbers are 621, 840, 706, 636
In the factoring method, we have to find the divisors of all numbers
Divisors of 621 :
The positive integer divisors of 621 that completely divides 621 are.
1, 3, 9, 23, 27, 69, 207, 621
Divisors of 840 :
The positive integer divisors of 840 that completely divides 840 are.
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
Divisors of 706 :
The positive integer divisors of 706 that completely divides 706 are.
1, 2, 353, 706
Divisors of 636 :
The positive integer divisors of 636 that completely divides 636 are.
1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636
GCD of numbers is the greatest common divisor
So, the GCD (621, 840, 706, 636) = 1.
Given numbers are 621, 840, 706, 636
The list of prime factors of all numbers are
Prime factors of 621 are 3 x 3 x 3 x 23
Prime factors of 840 are 2 x 2 x 2 x 3 x 5 x 7
Prime factors of 706 are 2 x 353
Prime factors of 636 are 2 x 2 x 3 x 53
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 621, 840, 706, 636
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(621, 840) = 173880
GCD(621, 840) = ( 621 x 840 ) / 173880
= 621 / 840
= 621
Step2:
LCM(3, 706) = 2118
GCD(3, 706) = ( 3 x 706 ) / 2118
= 3 / 706
= 3
Step3:
LCM(1, 636) = 636
GCD(1, 636) = ( 1 x 636 ) / 636
= 1 / 636
= 1
So, Greatest Common Divisor of 621, 840, 706, 636 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 621, 840, 706, 636
The greatest common divisor of numbers 621, 840, 706, 636 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 621, 840, 706, 636 is 1.
1. What is the GCD of 621, 840, 706, 636?
GCD of given numbers 621, 840, 706, 636 is 1
2. How to calculate the greatest common divisor of 621, 840, 706, 636?
We can find the highest common divisor of 621, 840, 706, 636 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 621, 840, 706, 636 i.e 1.
3. How can I use the GCD of 621, 840, 706, 636Calculator?
Out the numbers 621, 840, 706, 636 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.