Online GCD Calculator is useful to find the GCD of 720, 496, 661, 780 quickly. Get the easiest ways to solve the greatest common divisor of 720, 496, 661, 780 i.e 1 in different methods as follows.
Given Input numbers are 720, 496, 661, 780
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 496 :
The positive integer divisors of 496 that completely divides 496 are.
1, 2, 4, 8, 16, 31, 62, 124, 248, 496
Divisors of 661 :
The positive integer divisors of 661 that completely divides 661 are.
1, 661
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 (720, 496, 661, 780) = 1.
Given numbers are 720, 496, 661, 780
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 496 are 2 x 2 x 2 x 2 x 31
Prime factors of 661 are 661
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 720, 496, 661, 780
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(720, 496) = 22320
GCD(720, 496) = ( 720 x 496 ) / 22320
= 720 / 496
= 720
Step2:
LCM(16, 661) = 10576
GCD(16, 661) = ( 16 x 661 ) / 10576
= 16 / 661
= 16
Step3:
LCM(1, 780) = 780
GCD(1, 780) = ( 1 x 780 ) / 780
= 1 / 780
= 1
So, Greatest Common Divisor of 720, 496, 661, 780 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 720, 496, 661, 780
The greatest common divisor of numbers 720, 496, 661, 780 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 720, 496, 661, 780 is 1.
1. What is the GCD of 720, 496, 661, 780?
GCD of given numbers 720, 496, 661, 780 is 1
2. How to calculate the greatest common divisor of 720, 496, 661, 780?
We can find the highest common divisor of 720, 496, 661, 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 720, 496, 661, 780 i.e 1.
3. How can I use the GCD of 720, 496, 661, 780Calculator?
Out the numbers 720, 496, 661, 780 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.