Highest Common Factor of 95, 81, 35, 21 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 95, 81, 35, 21 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 95, 81, 35, 21 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 95, 81, 35, 21 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 95, 81, 35, 21 is 1.
HCF(95, 81, 35, 21) = 1
HCF of 95, 81, 35, 21 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 95, 81, 35, 21 is 1.
Highest Common Factor of 95,81,35,21 is 1
Step 1: Since 95 > 81, we apply the division lemma to 95 and 81, to get
95 = 81 x 1 + 14
Step 2: Since the reminder 81 ≠ 0, we apply division lemma to 14 and 81, to get
81 = 14 x 5 + 11
Step 3: We consider the new divisor 14 and the new remainder 11, and apply the division lemma to get
14 = 11 x 1 + 3
We consider the new divisor 11 and the new remainder 3,and apply the division lemma to get
11 = 3 x 3 + 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 95 and 81 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(11,3) = HCF(14,11) = HCF(81,14) = HCF(95,81) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 35 > 1, we apply the division lemma to 35 and 1, to get
35 = 1 x 35 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 35 is 1
Notice that 1 = HCF(35,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 21 > 1, we apply the division lemma to 21 and 1, to get
21 = 1 x 21 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 21 is 1
Notice that 1 = HCF(21,1) .
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Frequently Asked Questions on HCF of 95, 81, 35, 21 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 95, 81, 35, 21?
Answer: HCF of 95, 81, 35, 21 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 95, 81, 35, 21 using Euclid's Algorithm?
Answer: For arbitrary numbers 95, 81, 35, 21 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.