Highest Common Factor of 840, 4647 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 840, 4647 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 840, 4647 is 3 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 840, 4647 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 840, 4647 is 3.
HCF(840, 4647) = 3
HCF of 840, 4647 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 840, 4647 is 3.
Highest Common Factor of 840,4647 is 3
Step 1: Since 4647 > 840, we apply the division lemma to 4647 and 840, to get
4647 = 840 x 5 + 447
Step 2: Since the reminder 840 ≠ 0, we apply division lemma to 447 and 840, to get
840 = 447 x 1 + 393
Step 3: We consider the new divisor 447 and the new remainder 393, and apply the division lemma to get
447 = 393 x 1 + 54
We consider the new divisor 393 and the new remainder 54,and apply the division lemma to get
393 = 54 x 7 + 15
We consider the new divisor 54 and the new remainder 15,and apply the division lemma to get
54 = 15 x 3 + 9
We consider the new divisor 15 and the new remainder 9,and apply the division lemma to get
15 = 9 x 1 + 6
We consider the new divisor 9 and the new remainder 6,and apply the division lemma to get
9 = 6 x 1 + 3
We consider the new divisor 6 and the new remainder 3,and apply the division lemma to get
6 = 3 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 840 and 4647 is 3
Notice that 3 = HCF(6,3) = HCF(9,6) = HCF(15,9) = HCF(54,15) = HCF(393,54) = HCF(447,393) = HCF(840,447) = HCF(4647,840) .
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Frequently Asked Questions on HCF of 840, 4647 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 840, 4647?
Answer: HCF of 840, 4647 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 840, 4647 using Euclid's Algorithm?
Answer: For arbitrary numbers 840, 4647 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.