Online GCD Calculator is useful to find the GCD of 840, 155, 265, 805 quickly. Get the easiest ways to solve the greatest common divisor of 840, 155, 265, 805 i.e 5 in different methods as follows.
Given Input numbers are 840, 155, 265, 805
In the factoring method, we have to find the divisors of all numbers
Divisors of 840 :
The positive integer divisors of 840 that completely divides 840 are.
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
Divisors of 155 :
The positive integer divisors of 155 that completely divides 155 are.
1, 5, 31, 155
Divisors of 265 :
The positive integer divisors of 265 that completely divides 265 are.
1, 5, 53, 265
Divisors of 805 :
The positive integer divisors of 805 that completely divides 805 are.
1, 5, 7, 23, 35, 115, 161, 805
GCD of numbers is the greatest common divisor
So, the GCD (840, 155, 265, 805) = 5.
Given numbers are 840, 155, 265, 805
The list of prime factors of all numbers are
Prime factors of 840 are 2 x 2 x 2 x 3 x 5 x 7
Prime factors of 155 are 5 x 31
Prime factors of 265 are 5 x 53
Prime factors of 805 are 5 x 7 x 23
The highest common occurrence is 51
Therefore, GCD of 840, 155, 265, 805 is 5.
Given numbers are 840, 155, 265, 805
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(840, 155) = 26040
GCD(840, 155) = ( 840 x 155 ) / 26040
= 840 / 155
= 840
Step2:
LCM(5, 265) = 265
GCD(5, 265) = ( 5 x 265 ) / 265
= 5 / 265
= 5
Step3:
LCM(5, 805) = 805
GCD(5, 805) = ( 5 x 805 ) / 805
= 5 / 805
= 5
So, Greatest Common Divisor of 840, 155, 265, 805 is 5
Here are some samples of GCD of Numbers calculations.
Given numbers are 840, 155, 265, 805
The greatest common divisor of numbers 840, 155, 265, 805 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 840, 155, 265, 805 is 5.
1. What is the GCD of 840, 155, 265, 805?
GCD of given numbers 840, 155, 265, 805 is 5
2. How to calculate the greatest common divisor of 840, 155, 265, 805?
We can find the highest common divisor of 840, 155, 265, 805 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 840, 155, 265, 805 i.e 5.
3. How can I use the GCD of 840, 155, 265, 805Calculator?
Out the numbers 840, 155, 265, 805 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.