Highest Common Factor of 247, 208, 170 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 247, 208, 170 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 247, 208, 170 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 247, 208, 170 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 247, 208, 170 is 1.
HCF(247, 208, 170) = 1
HCF of 247, 208, 170 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 247, 208, 170 is 1.
Highest Common Factor of 247,208,170 is 1
Step 1: Since 247 > 208, we apply the division lemma to 247 and 208, to get
247 = 208 x 1 + 39
Step 2: Since the reminder 208 ≠ 0, we apply division lemma to 39 and 208, to get
208 = 39 x 5 + 13
Step 3: We consider the new divisor 39 and the new remainder 13, and apply the division lemma to get
39 = 13 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 13, the HCF of 247 and 208 is 13
Notice that 13 = HCF(39,13) = HCF(208,39) = HCF(247,208) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 170 > 13, we apply the division lemma to 170 and 13, to get
170 = 13 x 13 + 1
Step 2: Since the reminder 13 ≠ 0, we apply division lemma to 1 and 13, 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 13 and 170 is 1
Notice that 1 = HCF(13,1) = HCF(170,13) .
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Frequently Asked Questions on HCF of 247, 208, 170 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 247, 208, 170?
Answer: HCF of 247, 208, 170 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 247, 208, 170 using Euclid's Algorithm?
Answer: For arbitrary numbers 247, 208, 170 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.