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 395, 680, 477 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 395, 680, 477 is 1 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 395, 680, 477 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 395, 680, 477 is 1.
HCF(395, 680, 477) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 395, 680, 477 is 1.
Step 1: Since 680 > 395, we apply the division lemma to 680 and 395, to get
680 = 395 x 1 + 285
Step 2: Since the reminder 395 ≠ 0, we apply division lemma to 285 and 395, to get
395 = 285 x 1 + 110
Step 3: We consider the new divisor 285 and the new remainder 110, and apply the division lemma to get
285 = 110 x 2 + 65
We consider the new divisor 110 and the new remainder 65,and apply the division lemma to get
110 = 65 x 1 + 45
We consider the new divisor 65 and the new remainder 45,and apply the division lemma to get
65 = 45 x 1 + 20
We consider the new divisor 45 and the new remainder 20,and apply the division lemma to get
45 = 20 x 2 + 5
We consider the new divisor 20 and the new remainder 5,and apply the division lemma to get
20 = 5 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 395 and 680 is 5
Notice that 5 = HCF(20,5) = HCF(45,20) = HCF(65,45) = HCF(110,65) = HCF(285,110) = HCF(395,285) = HCF(680,395) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 477 > 5, we apply the division lemma to 477 and 5, to get
477 = 5 x 95 + 2
Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 2 and 5, to get
5 = 2 x 2 + 1
Step 3: We consider the new divisor 2 and the new remainder 1, and apply the division lemma to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 5 and 477 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(477,5) .
Here are some samples of HCF using Euclid's Algorithm calculations.
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 395, 680, 477?
Answer: HCF of 395, 680, 477 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 395, 680, 477 using Euclid's Algorithm?
Answer: For arbitrary numbers 395, 680, 477 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.