Online GCD Calculator is useful to find the GCD of 987, 155, 720, 444 quickly. Get the easiest ways to solve the greatest common divisor of 987, 155, 720, 444 i.e 1 in different methods as follows.
Given Input numbers are 987, 155, 720, 444
In the factoring method, we have to find the divisors of all numbers
Divisors of 987 :
The positive integer divisors of 987 that completely divides 987 are.
1, 3, 7, 21, 47, 141, 329, 987
Divisors of 155 :
The positive integer divisors of 155 that completely divides 155 are.
1, 5, 31, 155
Divisors of 720 :
The positive integer divisors of 720 that completely divides 720 are.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
Divisors of 444 :
The positive integer divisors of 444 that completely divides 444 are.
1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 222, 444
GCD of numbers is the greatest common divisor
So, the GCD (987, 155, 720, 444) = 1.
Given numbers are 987, 155, 720, 444
The list of prime factors of all numbers are
Prime factors of 987 are 3 x 7 x 47
Prime factors of 155 are 5 x 31
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
Prime factors of 444 are 2 x 2 x 3 x 37
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 987, 155, 720, 444
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(987, 155) = 152985
GCD(987, 155) = ( 987 x 155 ) / 152985
= 987 / 155
= 987
Step2:
LCM(1, 720) = 720
GCD(1, 720) = ( 1 x 720 ) / 720
= 1 / 720
= 1
Step3:
LCM(1, 444) = 444
GCD(1, 444) = ( 1 x 444 ) / 444
= 1 / 444
= 1
So, Greatest Common Divisor of 987, 155, 720, 444 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 987, 155, 720, 444
The greatest common divisor of numbers 987, 155, 720, 444 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 987, 155, 720, 444 is 1.
1. What is the GCD of 987, 155, 720, 444?
GCD of given numbers 987, 155, 720, 444 is 1
2. How to calculate the greatest common divisor of 987, 155, 720, 444?
We can find the highest common divisor of 987, 155, 720, 444 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 987, 155, 720, 444 i.e 1.
3. How can I use the GCD of 987, 155, 720, 444Calculator?
Out the numbers 987, 155, 720, 444 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.