Online GCD Calculator is useful to find the GCD of 495, 420, 550, 640 quickly. Get the easiest ways to solve the greatest common divisor of 495, 420, 550, 640 i.e 5 in different methods as follows.
Given Input numbers are 495, 420, 550, 640
In the factoring method, we have to find the divisors of all numbers
Divisors of 495 :
The positive integer divisors of 495 that completely divides 495 are.
1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495
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 550 :
The positive integer divisors of 550 that completely divides 550 are.
1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550
Divisors of 640 :
The positive integer divisors of 640 that completely divides 640 are.
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
GCD of numbers is the greatest common divisor
So, the GCD (495, 420, 550, 640) = 5.
Given numbers are 495, 420, 550, 640
The list of prime factors of all numbers are
Prime factors of 495 are 3 x 3 x 5 x 11
Prime factors of 420 are 2 x 2 x 3 x 5 x 7
Prime factors of 550 are 2 x 5 x 5 x 11
Prime factors of 640 are 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5
The highest common occurrence is 51
Therefore, GCD of 495, 420, 550, 640 is 5.
Given numbers are 495, 420, 550, 640
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(495, 420) = 13860
GCD(495, 420) = ( 495 x 420 ) / 13860
= 495 / 420
= 495
Step2:
LCM(15, 550) = 1650
GCD(15, 550) = ( 15 x 550 ) / 1650
= 15 / 550
= 15
Step3:
LCM(5, 640) = 640
GCD(5, 640) = ( 5 x 640 ) / 640
= 5 / 640
= 5
So, Greatest Common Divisor of 495, 420, 550, 640 is 5
Here are some samples of GCD of Numbers calculations.
Given numbers are 495, 420, 550, 640
The greatest common divisor of numbers 495, 420, 550, 640 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 495, 420, 550, 640 is 5.
1. What is the GCD of 495, 420, 550, 640?
GCD of given numbers 495, 420, 550, 640 is 5
2. How to calculate the greatest common divisor of 495, 420, 550, 640?
We can find the highest common divisor of 495, 420, 550, 640 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 495, 420, 550, 640 i.e 5.
3. How can I use the GCD of 495, 420, 550, 640Calculator?
Out the numbers 495, 420, 550, 640 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.