Highest Common Factor of 342, 247, 815 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, 247, 815 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 342, 247, 815 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, 247, 815 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, 247, 815 is 1.
HCF(342, 247, 815) = 1
HCF of 342, 247, 815 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, 247, 815 is 1.
Highest Common Factor of 342,247,815 is 1
Step 1: Since 342 > 247, we apply the division lemma to 342 and 247, to get
342 = 247 x 1 + 95
Step 2: Since the reminder 247 ≠ 0, we apply division lemma to 95 and 247, to get
247 = 95 x 2 + 57
Step 3: We consider the new divisor 95 and the new remainder 57, and apply the division lemma to get
95 = 57 x 1 + 38
We consider the new divisor 57 and the new remainder 38,and apply the division lemma to get
57 = 38 x 1 + 19
We consider the new divisor 38 and the new remainder 19,and apply the division lemma to get
38 = 19 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 19, the HCF of 342 and 247 is 19
Notice that 19 = HCF(38,19) = HCF(57,38) = HCF(95,57) = HCF(247,95) = HCF(342,247) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 815 > 19, we apply the division lemma to 815 and 19, to get
815 = 19 x 42 + 17
Step 2: Since the reminder 19 ≠ 0, we apply division lemma to 17 and 19, to get
19 = 17 x 1 + 2
Step 3: We consider the new divisor 17 and the new remainder 2, and apply the division lemma to get
17 = 2 x 8 + 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 19 and 815 is 1
Notice that 1 = HCF(2,1) = HCF(17,2) = HCF(19,17) = HCF(815,19) .
HCF using Euclid's Algorithm Calculation Examples
Here are some samples of HCF using Euclid's Algorithm calculations.
Frequently Asked Questions on HCF of 342, 247, 815 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, 247, 815?
Answer: HCF of 342, 247, 815 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 342, 247, 815 using Euclid's Algorithm?
Answer: For arbitrary numbers 342, 247, 815 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
