Highest Common Factor of 161, 257, 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 161, 257, 806 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 161, 257, 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 161, 257, 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 161, 257, 806 is 1.
HCF(161, 257, 806) = 1
HCF of 161, 257, 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 161, 257, 806 is 1.
Highest Common Factor of 161,257,806 is 1
Step 1: Since 257 > 161, we apply the division lemma to 257 and 161, to get
257 = 161 x 1 + 96
Step 2: Since the reminder 161 ≠ 0, we apply division lemma to 96 and 161, to get
161 = 96 x 1 + 65
Step 3: We consider the new divisor 96 and the new remainder 65, and apply the division lemma to get
96 = 65 x 1 + 31
We consider the new divisor 65 and the new remainder 31,and apply the division lemma to get
65 = 31 x 2 + 3
We consider the new divisor 31 and the new remainder 3,and apply the division lemma to get
31 = 3 x 10 + 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 161 and 257 is 1
Notice that 1 = HCF(3,1) = HCF(31,3) = HCF(65,31) = HCF(96,65) = HCF(161,96) = HCF(257,161) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 806 > 1, we apply the division lemma to 806 and 1, to get
806 = 1 x 806 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 806 is 1
Notice that 1 = HCF(806,1) .
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Frequently Asked Questions on HCF of 161, 257, 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 161, 257, 806?
Answer: HCF of 161, 257, 806 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 161, 257, 806 using Euclid's Algorithm?
Answer: For arbitrary numbers 161, 257, 806 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.