Highest Common Factor of 798, 18657 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 798, 18657 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 798, 18657 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 798, 18657 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 798, 18657 is 3.
HCF(798, 18657) = 3
HCF of 798, 18657 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 798, 18657 is 3.
Highest Common Factor of 798,18657 is 3
Step 1: Since 18657 > 798, we apply the division lemma to 18657 and 798, to get
18657 = 798 x 23 + 303
Step 2: Since the reminder 798 ≠ 0, we apply division lemma to 303 and 798, to get
798 = 303 x 2 + 192
Step 3: We consider the new divisor 303 and the new remainder 192, and apply the division lemma to get
303 = 192 x 1 + 111
We consider the new divisor 192 and the new remainder 111,and apply the division lemma to get
192 = 111 x 1 + 81
We consider the new divisor 111 and the new remainder 81,and apply the division lemma to get
111 = 81 x 1 + 30
We consider the new divisor 81 and the new remainder 30,and apply the division lemma to get
81 = 30 x 2 + 21
We consider the new divisor 30 and the new remainder 21,and apply the division lemma to get
30 = 21 x 1 + 9
We consider the new divisor 21 and the new remainder 9,and apply the division lemma to get
21 = 9 x 2 + 3
We consider the new divisor 9 and the new remainder 3,and apply the division lemma to get
9 = 3 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 798 and 18657 is 3
Notice that 3 = HCF(9,3) = HCF(21,9) = HCF(30,21) = HCF(81,30) = HCF(111,81) = HCF(192,111) = HCF(303,192) = HCF(798,303) = HCF(18657,798) .
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Frequently Asked Questions on HCF of 798, 18657 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 798, 18657?
Answer: HCF of 798, 18657 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 798, 18657 using Euclid's Algorithm?
Answer: For arbitrary numbers 798, 18657 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
