GCD of 840, 315, 280 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 840, 315, 280 quickly. Get the easiest ways to solve the greatest common divisor of 840, 315, 280 i.e 35 in different methods as follows.
Given Input numbers are 840, 315, 280
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 315 :
The positive integer divisors of 315 that completely divides 315 are.
1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315
Divisors of 280 :
The positive integer divisors of 280 that completely divides 280 are.
1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
GCD of numbers is the greatest common divisor
So, the GCD (840, 315, 280) = 35.
Given numbers are 840, 315, 280
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 315 are 3 x 3 x 5 x 7
Prime factors of 280 are 2 x 2 x 2 x 5 x 7
The highest common occurrence is 51 x 71
Therefore, GCD of 840, 315, 280 is 35.
Steps to Calculate GCD of 840, 315, 280 using LCM Formula
Given numbers are 840, 315, 280
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(840, 315) = 2520
GCD(840, 315) = ( 840 x 315 ) / 2520
= 840 / 315
= 840
Step2:
LCM(105, 280) = 840
GCD(105, 280) = ( 105 x 280 ) / 840
= 105 / 280
= 105
So, Greatest Common Divisor of 840, 315, 280 is 35
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 840, 315, 280
Given numbers are 840, 315, 280
The greatest common divisor of numbers 840, 315, 280 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 840, 315, 280 is 35.
FAQs on GCD of 840, 315, 280 Calculator
1. What is the GCD of 840, 315, 280?
GCD of given numbers 840, 315, 280 is 35
2. How to calculate the greatest common divisor of 840, 315, 280?
We can find the highest common divisor of 840, 315, 280 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, 315, 280 i.e 35.
3. How can I use the GCD of 840, 315, 280Calculator?
Out the numbers 840, 315, 280 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.