Highest Common Factor of 315, 420, 806 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 315, 420, 806 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 315, 420, 806 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 315, 420, 806 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 315, 420, 806 is 1.
HCF(315, 420, 806) = 1
HCF of 315, 420, 806 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 315, 420, 806 is 1.
Highest Common Factor of 315,420,806 is 1
Step 1: Since 420 > 315, we apply the division lemma to 420 and 315, to get
420 = 315 x 1 + 105
Step 2: Since the reminder 315 ≠ 0, we apply division lemma to 105 and 315, to get
315 = 105 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 105, the HCF of 315 and 420 is 105
Notice that 105 = HCF(315,105) = HCF(420,315) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 806 > 105, we apply the division lemma to 806 and 105, to get
806 = 105 x 7 + 71
Step 2: Since the reminder 105 ≠ 0, we apply division lemma to 71 and 105, to get
105 = 71 x 1 + 34
Step 3: We consider the new divisor 71 and the new remainder 34, and apply the division lemma to get
71 = 34 x 2 + 3
We consider the new divisor 34 and the new remainder 3,and apply the division lemma to get
34 = 3 x 11 + 1
We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get
3 = 1 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 105 and 806 is 1
Notice that 1 = HCF(3,1) = HCF(34,3) = HCF(71,34) = HCF(105,71) = HCF(806,105) .
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Frequently Asked Questions on HCF of 315, 420, 806 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 315, 420, 806?
Answer: HCF of 315, 420, 806 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 315, 420, 806 using Euclid's Algorithm?
Answer: For arbitrary numbers 315, 420, 806 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.