Highest Common Factor of 428, 701, 18 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 428, 701, 18 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 428, 701, 18 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 428, 701, 18 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 428, 701, 18 is 1.
HCF(428, 701, 18) = 1
HCF of 428, 701, 18 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 428, 701, 18 is 1.
Highest Common Factor of 428,701,18 is 1
Step 1: Since 701 > 428, we apply the division lemma to 701 and 428, to get
701 = 428 x 1 + 273
Step 2: Since the reminder 428 ≠ 0, we apply division lemma to 273 and 428, to get
428 = 273 x 1 + 155
Step 3: We consider the new divisor 273 and the new remainder 155, and apply the division lemma to get
273 = 155 x 1 + 118
We consider the new divisor 155 and the new remainder 118,and apply the division lemma to get
155 = 118 x 1 + 37
We consider the new divisor 118 and the new remainder 37,and apply the division lemma to get
118 = 37 x 3 + 7
We consider the new divisor 37 and the new remainder 7,and apply the division lemma to get
37 = 7 x 5 + 2
We consider the new divisor 7 and the new remainder 2,and apply the division lemma to get
7 = 2 x 3 + 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 428 and 701 is 1
Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(37,7) = HCF(118,37) = HCF(155,118) = HCF(273,155) = HCF(428,273) = HCF(701,428) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 18 > 1, we apply the division lemma to 18 and 1, to get
18 = 1 x 18 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 18 is 1
Notice that 1 = HCF(18,1) .
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Frequently Asked Questions on HCF of 428, 701, 18 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 428, 701, 18?
Answer: HCF of 428, 701, 18 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 428, 701, 18 using Euclid's Algorithm?
Answer: For arbitrary numbers 428, 701, 18 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
