Online GCD Calculator is useful to find the GCD of 420, 725, 17 quickly. Get the easiest ways to solve the greatest common divisor of 420, 725, 17 i.e 1 in different methods as follows.
Given Input numbers are 420, 725, 17
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 725 :
The positive integer divisors of 725 that completely divides 725 are.
1, 5, 25, 29, 145, 725
Divisors of 17 :
The positive integer divisors of 17 that completely divides 17 are.
1, 17
GCD of numbers is the greatest common divisor
So, the GCD (420, 725, 17) = 1.
Given numbers are 420, 725, 17
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 725 are 5 x 5 x 29
Prime factors of 17 are 17
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 420, 725, 17
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(420, 725) = 60900
GCD(420, 725) = ( 420 x 725 ) / 60900
= 420 / 725
= 420
Step2:
LCM(5, 17) = 85
GCD(5, 17) = ( 5 x 17 ) / 85
= 5 / 17
= 5
So, Greatest Common Divisor of 420, 725, 17 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 420, 725, 17
The greatest common divisor of numbers 420, 725, 17 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 420, 725, 17 is 1.
1. What is the GCD of 420, 725, 17?
GCD of given numbers 420, 725, 17 is 1
2. How to calculate the greatest common divisor of 420, 725, 17?
We can find the highest common divisor of 420, 725, 17 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, 725, 17 i.e 1.
3. How can I use the GCD of 420, 725, 17Calculator?
Out the numbers 420, 725, 17 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.