Online GCD Calculator is useful to find the GCD of 720, 738, 420, 669 quickly. Get the easiest ways to solve the greatest common divisor of 720, 738, 420, 669 i.e 3 in different methods as follows.
Given Input numbers are 720, 738, 420, 669
In the factoring method, we have to find the divisors of all numbers
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 738 :
The positive integer divisors of 738 that completely divides 738 are.
1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738
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 669 :
The positive integer divisors of 669 that completely divides 669 are.
1, 3, 223, 669
GCD of numbers is the greatest common divisor
So, the GCD (720, 738, 420, 669) = 3.
Given numbers are 720, 738, 420, 669
The list of prime factors of all numbers are
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
Prime factors of 738 are 2 x 3 x 3 x 41
Prime factors of 420 are 2 x 2 x 3 x 5 x 7
Prime factors of 669 are 3 x 223
The highest common occurrence is 31
Therefore, GCD of 720, 738, 420, 669 is 3.
Given numbers are 720, 738, 420, 669
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(720, 738) = 29520
GCD(720, 738) = ( 720 x 738 ) / 29520
= 720 / 738
= 720
Step2:
LCM(18, 420) = 1260
GCD(18, 420) = ( 18 x 420 ) / 1260
= 18 / 420
= 18
Step3:
LCM(6, 669) = 1338
GCD(6, 669) = ( 6 x 669 ) / 1338
= 6 / 669
= 6
So, Greatest Common Divisor of 720, 738, 420, 669 is 3
Here are some samples of GCD of Numbers calculations.
Given numbers are 720, 738, 420, 669
The greatest common divisor of numbers 720, 738, 420, 669 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 720, 738, 420, 669 is 3.
1. What is the GCD of 720, 738, 420, 669?
GCD of given numbers 720, 738, 420, 669 is 3
2. How to calculate the greatest common divisor of 720, 738, 420, 669?
We can find the highest common divisor of 720, 738, 420, 669 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 720, 738, 420, 669 i.e 3.
3. How can I use the GCD of 720, 738, 420, 669Calculator?
Out the numbers 720, 738, 420, 669 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.