Highest Common Factor of 398, 7831 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 398, 7831 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 398, 7831 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 398, 7831 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 398, 7831 is 1.
HCF(398, 7831) = 1
HCF of 398, 7831 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 398, 7831 is 1.
Highest Common Factor of 398,7831 is 1
Step 1: Since 7831 > 398, we apply the division lemma to 7831 and 398, to get
7831 = 398 x 19 + 269
Step 2: Since the reminder 398 ≠ 0, we apply division lemma to 269 and 398, to get
398 = 269 x 1 + 129
Step 3: We consider the new divisor 269 and the new remainder 129, and apply the division lemma to get
269 = 129 x 2 + 11
We consider the new divisor 129 and the new remainder 11,and apply the division lemma to get
129 = 11 x 11 + 8
We consider the new divisor 11 and the new remainder 8,and apply the division lemma to get
11 = 8 x 1 + 3
We consider the new divisor 8 and the new remainder 3,and apply the division lemma to get
8 = 3 x 2 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 1
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 398 and 7831 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(8,3) = HCF(11,8) = HCF(129,11) = HCF(269,129) = HCF(398,269) = HCF(7831,398) .
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Frequently Asked Questions on HCF of 398, 7831 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 398, 7831?
Answer: HCF of 398, 7831 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 398, 7831 using Euclid's Algorithm?
Answer: For arbitrary numbers 398, 7831 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.