Highest Common Factor of 665, 173, 870 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 665, 173, 870 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 665, 173, 870 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 665, 173, 870 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 665, 173, 870 is 1.
HCF(665, 173, 870) = 1
HCF of 665, 173, 870 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 665, 173, 870 is 1.
Highest Common Factor of 665,173,870 is 1
Step 1: Since 665 > 173, we apply the division lemma to 665 and 173, to get
665 = 173 x 3 + 146
Step 2: Since the reminder 173 ≠ 0, we apply division lemma to 146 and 173, to get
173 = 146 x 1 + 27
Step 3: We consider the new divisor 146 and the new remainder 27, and apply the division lemma to get
146 = 27 x 5 + 11
We consider the new divisor 27 and the new remainder 11,and apply the division lemma to get
27 = 11 x 2 + 5
We consider the new divisor 11 and the new remainder 5,and apply the division lemma to get
11 = 5 x 2 + 1
We consider the new divisor 5 and the new remainder 1,and apply the division lemma to get
5 = 1 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 665 and 173 is 1
Notice that 1 = HCF(5,1) = HCF(11,5) = HCF(27,11) = HCF(146,27) = HCF(173,146) = HCF(665,173) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 870 > 1, we apply the division lemma to 870 and 1, to get
870 = 1 x 870 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 870 is 1
Notice that 1 = HCF(870,1) .
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Frequently Asked Questions on HCF of 665, 173, 870 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 665, 173, 870?
Answer: HCF of 665, 173, 870 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 665, 173, 870 using Euclid's Algorithm?
Answer: For arbitrary numbers 665, 173, 870 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.