Highest Common Factor of 127, 717, 42 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 127, 717, 42 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 127, 717, 42 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 127, 717, 42 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 127, 717, 42 is 1.
HCF(127, 717, 42) = 1
HCF of 127, 717, 42 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 127, 717, 42 is 1.
Highest Common Factor of 127,717,42 is 1
Step 1: Since 717 > 127, we apply the division lemma to 717 and 127, to get
717 = 127 x 5 + 82
Step 2: Since the reminder 127 ≠ 0, we apply division lemma to 82 and 127, to get
127 = 82 x 1 + 45
Step 3: We consider the new divisor 82 and the new remainder 45, and apply the division lemma to get
82 = 45 x 1 + 37
We consider the new divisor 45 and the new remainder 37,and apply the division lemma to get
45 = 37 x 1 + 8
We consider the new divisor 37 and the new remainder 8,and apply the division lemma to get
37 = 8 x 4 + 5
We consider the new divisor 8 and the new remainder 5,and apply the division lemma to get
8 = 5 x 1 + 3
We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get
5 = 3 x 1 + 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 127 and 717 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(8,5) = HCF(37,8) = HCF(45,37) = HCF(82,45) = HCF(127,82) = HCF(717,127) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 42 > 1, we apply the division lemma to 42 and 1, to get
42 = 1 x 42 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 42 is 1
Notice that 1 = HCF(42,1) .
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Frequently Asked Questions on HCF of 127, 717, 42 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 127, 717, 42?
Answer: HCF of 127, 717, 42 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 127, 717, 42 using Euclid's Algorithm?
Answer: For arbitrary numbers 127, 717, 42 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.