Highest Common Factor of 166, 778, 161 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 166, 778, 161 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 166, 778, 161 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 166, 778, 161 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 166, 778, 161 is 1.
HCF(166, 778, 161) = 1
HCF of 166, 778, 161 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 166, 778, 161 is 1.
Highest Common Factor of 166,778,161 is 1
Step 1: Since 778 > 166, we apply the division lemma to 778 and 166, to get
778 = 166 x 4 + 114
Step 2: Since the reminder 166 ≠ 0, we apply division lemma to 114 and 166, to get
166 = 114 x 1 + 52
Step 3: We consider the new divisor 114 and the new remainder 52, and apply the division lemma to get
114 = 52 x 2 + 10
We consider the new divisor 52 and the new remainder 10,and apply the division lemma to get
52 = 10 x 5 + 2
We consider the new divisor 10 and the new remainder 2,and apply the division lemma to get
10 = 2 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 166 and 778 is 2
Notice that 2 = HCF(10,2) = HCF(52,10) = HCF(114,52) = HCF(166,114) = HCF(778,166) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 161 > 2, we apply the division lemma to 161 and 2, to get
161 = 2 x 80 + 1
Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, 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 2 and 161 is 1
Notice that 1 = HCF(2,1) = HCF(161,2) .
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Frequently Asked Questions on HCF of 166, 778, 161 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 166, 778, 161?
Answer: HCF of 166, 778, 161 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 166, 778, 161 using Euclid's Algorithm?
Answer: For arbitrary numbers 166, 778, 161 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.