Highest Common Factor of 917, 1438 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 917, 1438 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 917, 1438 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 917, 1438 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 917, 1438 is 1.
HCF(917, 1438) = 1
HCF of 917, 1438 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 917, 1438 is 1.
Highest Common Factor of 917,1438 is 1
Step 1: Since 1438 > 917, we apply the division lemma to 1438 and 917, to get
1438 = 917 x 1 + 521
Step 2: Since the reminder 917 ≠ 0, we apply division lemma to 521 and 917, to get
917 = 521 x 1 + 396
Step 3: We consider the new divisor 521 and the new remainder 396, and apply the division lemma to get
521 = 396 x 1 + 125
We consider the new divisor 396 and the new remainder 125,and apply the division lemma to get
396 = 125 x 3 + 21
We consider the new divisor 125 and the new remainder 21,and apply the division lemma to get
125 = 21 x 5 + 20
We consider the new divisor 21 and the new remainder 20,and apply the division lemma to get
21 = 20 x 1 + 1
We consider the new divisor 20 and the new remainder 1,and apply the division lemma to get
20 = 1 x 20 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 917 and 1438 is 1
Notice that 1 = HCF(20,1) = HCF(21,20) = HCF(125,21) = HCF(396,125) = HCF(521,396) = HCF(917,521) = HCF(1438,917) .
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Frequently Asked Questions on HCF of 917, 1438 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 917, 1438?
Answer: HCF of 917, 1438 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 917, 1438 using Euclid's Algorithm?
Answer: For arbitrary numbers 917, 1438 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.