Online GCD Calculator is useful to find the GCD of 840, 621, 198, 787 quickly. Get the easiest ways to solve the greatest common divisor of 840, 621, 198, 787 i.e 1 in different methods as follows.
Given Input numbers are 840, 621, 198, 787
In the factoring method, we have to find the divisors of all numbers
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 621 :
The positive integer divisors of 621 that completely divides 621 are.
1, 3, 9, 23, 27, 69, 207, 621
Divisors of 198 :
The positive integer divisors of 198 that completely divides 198 are.
1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198
Divisors of 787 :
The positive integer divisors of 787 that completely divides 787 are.
1, 787
GCD of numbers is the greatest common divisor
So, the GCD (840, 621, 198, 787) = 1.
Given numbers are 840, 621, 198, 787
The list of prime factors of all numbers are
Prime factors of 840 are 2 x 2 x 2 x 3 x 5 x 7
Prime factors of 621 are 3 x 3 x 3 x 23
Prime factors of 198 are 2 x 3 x 3 x 11
Prime factors of 787 are 787
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 840, 621, 198, 787
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(840, 621) = 173880
GCD(840, 621) = ( 840 x 621 ) / 173880
= 840 / 621
= 840
Step2:
LCM(3, 198) = 198
GCD(3, 198) = ( 3 x 198 ) / 198
= 3 / 198
= 3
Step3:
LCM(3, 787) = 2361
GCD(3, 787) = ( 3 x 787 ) / 2361
= 3 / 787
= 3
So, Greatest Common Divisor of 840, 621, 198, 787 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 840, 621, 198, 787
The greatest common divisor of numbers 840, 621, 198, 787 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 840, 621, 198, 787 is 1.
1. What is the GCD of 840, 621, 198, 787?
GCD of given numbers 840, 621, 198, 787 is 1
2. How to calculate the greatest common divisor of 840, 621, 198, 787?
We can find the highest common divisor of 840, 621, 198, 787 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 840, 621, 198, 787 i.e 1.
3. How can I use the GCD of 840, 621, 198, 787Calculator?
Out the numbers 840, 621, 198, 787 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.