Highest Common Factor of 831, 670, 821 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 831, 670, 821 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 831, 670, 821 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 831, 670, 821 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 831, 670, 821 is 1.
HCF(831, 670, 821) = 1
HCF of 831, 670, 821 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 831, 670, 821 is 1.
Highest Common Factor of 831,670,821 is 1
Step 1: Since 831 > 670, we apply the division lemma to 831 and 670, to get
831 = 670 x 1 + 161
Step 2: Since the reminder 670 ≠ 0, we apply division lemma to 161 and 670, to get
670 = 161 x 4 + 26
Step 3: We consider the new divisor 161 and the new remainder 26, and apply the division lemma to get
161 = 26 x 6 + 5
We consider the new divisor 26 and the new remainder 5,and apply the division lemma to get
26 = 5 x 5 + 1
We consider the new divisor 5 and the new remainder 1,and apply the division lemma to get
5 = 1 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 831 and 670 is 1
Notice that 1 = HCF(5,1) = HCF(26,5) = HCF(161,26) = HCF(670,161) = HCF(831,670) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 821 > 1, we apply the division lemma to 821 and 1, to get
821 = 1 x 821 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 821 is 1
Notice that 1 = HCF(821,1) .
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Frequently Asked Questions on HCF of 831, 670, 821 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 831, 670, 821?
Answer: HCF of 831, 670, 821 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 831, 670, 821 using Euclid's Algorithm?
Answer: For arbitrary numbers 831, 670, 821 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.