Highest Common Factor of 705, 275, 245 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 705, 275, 245 i.e. 5 the largest integer that leaves a remainder zero for all numbers.
HCF of 705, 275, 245 is 5 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 705, 275, 245 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 705, 275, 245 is 5.
HCF(705, 275, 245) = 5
HCF of 705, 275, 245 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 705, 275, 245 is 5.
Highest Common Factor of 705,275,245 is 5
Step 1: Since 705 > 275, we apply the division lemma to 705 and 275, to get
705 = 275 x 2 + 155
Step 2: Since the reminder 275 ≠ 0, we apply division lemma to 155 and 275, to get
275 = 155 x 1 + 120
Step 3: We consider the new divisor 155 and the new remainder 120, and apply the division lemma to get
155 = 120 x 1 + 35
We consider the new divisor 120 and the new remainder 35,and apply the division lemma to get
120 = 35 x 3 + 15
We consider the new divisor 35 and the new remainder 15,and apply the division lemma to get
35 = 15 x 2 + 5
We consider the new divisor 15 and the new remainder 5,and apply the division lemma to get
15 = 5 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 705 and 275 is 5
Notice that 5 = HCF(15,5) = HCF(35,15) = HCF(120,35) = HCF(155,120) = HCF(275,155) = HCF(705,275) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 245 > 5, we apply the division lemma to 245 and 5, to get
245 = 5 x 49 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 5 and 245 is 5
Notice that 5 = HCF(245,5) .
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Frequently Asked Questions on HCF of 705, 275, 245 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 705, 275, 245?
Answer: HCF of 705, 275, 245 is 5 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 705, 275, 245 using Euclid's Algorithm?
Answer: For arbitrary numbers 705, 275, 245 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.