Highest Common Factor of 143, 317, 493 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 143, 317, 493 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 143, 317, 493 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 143, 317, 493 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 143, 317, 493 is 1.
HCF(143, 317, 493) = 1
HCF of 143, 317, 493 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 143, 317, 493 is 1.
Highest Common Factor of 143,317,493 is 1
Step 1: Since 317 > 143, we apply the division lemma to 317 and 143, to get
317 = 143 x 2 + 31
Step 2: Since the reminder 143 ≠ 0, we apply division lemma to 31 and 143, to get
143 = 31 x 4 + 19
Step 3: We consider the new divisor 31 and the new remainder 19, and apply the division lemma to get
31 = 19 x 1 + 12
We consider the new divisor 19 and the new remainder 12,and apply the division lemma to get
19 = 12 x 1 + 7
We consider the new divisor 12 and the new remainder 7,and apply the division lemma to get
12 = 7 x 1 + 5
We consider the new divisor 7 and the new remainder 5,and apply the division lemma to get
7 = 5 x 1 + 2
We consider the new divisor 5 and the new remainder 2,and apply the division lemma to get
5 = 2 x 2 + 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 143 and 317 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(7,5) = HCF(12,7) = HCF(19,12) = HCF(31,19) = HCF(143,31) = HCF(317,143) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 493 > 1, we apply the division lemma to 493 and 1, to get
493 = 1 x 493 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 493 is 1
Notice that 1 = HCF(493,1) .
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Frequently Asked Questions on HCF of 143, 317, 493 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 143, 317, 493?
Answer: HCF of 143, 317, 493 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 143, 317, 493 using Euclid's Algorithm?
Answer: For arbitrary numbers 143, 317, 493 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.