Highest Common Factor of 820, 390 using Euclid's algorithm
Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 820, 390 i.e. 10 the largest integer that leaves a remainder zero for all numbers.
HCF of 820, 390 is 10 the largest number which exactly divides all the numbers i.e. where the remainder is zero. Let us get into the working of this example.
Consider we have numbers 820, 390 and we need to find the HCF of these numbers. To do so, we need to choose the largest integer first and then as per Euclid's Division Lemma a = bq + r where 0 ≤ r ≤ b
Highest common factor (HCF) of 820, 390 is 10.
HCF(820, 390) = 10
HCF of 820, 390 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 820, 390 is 10.
Highest Common Factor of 820,390 is 10
Step 1: Since 820 > 390, we apply the division lemma to 820 and 390, to get
820 = 390 x 2 + 40
Step 2: Since the reminder 390 ≠ 0, we apply division lemma to 40 and 390, to get
390 = 40 x 9 + 30
Step 3: We consider the new divisor 40 and the new remainder 30, and apply the division lemma to get
40 = 30 x 1 + 10
We consider the new divisor 30 and the new remainder 10, and apply the division lemma to get
30 = 10 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 10, the HCF of 820 and 390 is 10
Notice that 10 = HCF(30,10) = HCF(40,30) = HCF(390,40) = HCF(820,390) .
HCF using Euclid's Algorithm Calculation Examples
Here are some samples of HCF using Euclid's Algorithm calculations.
Frequently Asked Questions on HCF of 820, 390 using Euclid's Algorithm
1. What is the Euclid division algorithm?
Answer: Euclid's Division Algorithm is a technique to compute the Highest Common Factor (HCF) of given positive integers.
2. what is the HCF of 820, 390?
Answer: HCF of 820, 390 is 10 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 820, 390 using Euclid's Algorithm?
Answer: For arbitrary numbers 820, 390 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.