Online GCD Calculator is useful to find the GCD of 145, 831, 147, 780 quickly. Get the easiest ways to solve the greatest common divisor of 145, 831, 147, 780 i.e 1 in different methods as follows.
Given Input numbers are 145, 831, 147, 780
In the factoring method, we have to find the divisors of all numbers
Divisors of 145 :
The positive integer divisors of 145 that completely divides 145 are.
1, 5, 29, 145
Divisors of 831 :
The positive integer divisors of 831 that completely divides 831 are.
1, 3, 277, 831
Divisors of 147 :
The positive integer divisors of 147 that completely divides 147 are.
1, 3, 7, 21, 49, 147
Divisors of 780 :
The positive integer divisors of 780 that completely divides 780 are.
1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
GCD of numbers is the greatest common divisor
So, the GCD (145, 831, 147, 780) = 1.
Given numbers are 145, 831, 147, 780
The list of prime factors of all numbers are
Prime factors of 145 are 5 x 29
Prime factors of 831 are 3 x 277
Prime factors of 147 are 3 x 7 x 7
Prime factors of 780 are 2 x 2 x 3 x 5 x 13
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 145, 831, 147, 780
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(145, 831) = 120495
GCD(145, 831) = ( 145 x 831 ) / 120495
= 145 / 831
= 145
Step2:
LCM(1, 147) = 147
GCD(1, 147) = ( 1 x 147 ) / 147
= 1 / 147
= 1
Step3:
LCM(1, 780) = 780
GCD(1, 780) = ( 1 x 780 ) / 780
= 1 / 780
= 1
So, Greatest Common Divisor of 145, 831, 147, 780 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 145, 831, 147, 780
The greatest common divisor of numbers 145, 831, 147, 780 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 145, 831, 147, 780 is 1.
1. What is the GCD of 145, 831, 147, 780?
GCD of given numbers 145, 831, 147, 780 is 1
2. How to calculate the greatest common divisor of 145, 831, 147, 780?
We can find the highest common divisor of 145, 831, 147, 780 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 145, 831, 147, 780 i.e 1.
3. How can I use the GCD of 145, 831, 147, 780Calculator?
Out the numbers 145, 831, 147, 780 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.