Highest Common Factor of 342, 643, 648 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 342, 643, 648 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 342, 643, 648 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 342, 643, 648 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 342, 643, 648 is 1.
HCF(342, 643, 648) = 1
HCF of 342, 643, 648 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 342, 643, 648 is 1.
Highest Common Factor of 342,643,648 is 1
Step 1: Since 643 > 342, we apply the division lemma to 643 and 342, to get
643 = 342 x 1 + 301
Step 2: Since the reminder 342 ≠ 0, we apply division lemma to 301 and 342, to get
342 = 301 x 1 + 41
Step 3: We consider the new divisor 301 and the new remainder 41, and apply the division lemma to get
301 = 41 x 7 + 14
We consider the new divisor 41 and the new remainder 14,and apply the division lemma to get
41 = 14 x 2 + 13
We consider the new divisor 14 and the new remainder 13,and apply the division lemma to get
14 = 13 x 1 + 1
We consider the new divisor 13 and the new remainder 1,and apply the division lemma to get
13 = 1 x 13 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 342 and 643 is 1
Notice that 1 = HCF(13,1) = HCF(14,13) = HCF(41,14) = HCF(301,41) = HCF(342,301) = HCF(643,342) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 648 > 1, we apply the division lemma to 648 and 1, to get
648 = 1 x 648 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 648 is 1
Notice that 1 = HCF(648,1) .
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Frequently Asked Questions on HCF of 342, 643, 648 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 342, 643, 648?
Answer: HCF of 342, 643, 648 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 342, 643, 648 using Euclid's Algorithm?
Answer: For arbitrary numbers 342, 643, 648 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.