Highest Common Factor of 287, 392, 743 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 287, 392, 743 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 287, 392, 743 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 287, 392, 743 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 287, 392, 743 is 1.
HCF(287, 392, 743) = 1
HCF of 287, 392, 743 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 287, 392, 743 is 1.
Highest Common Factor of 287,392,743 is 1
Step 1: Since 392 > 287, we apply the division lemma to 392 and 287, to get
392 = 287 x 1 + 105
Step 2: Since the reminder 287 ≠ 0, we apply division lemma to 105 and 287, to get
287 = 105 x 2 + 77
Step 3: We consider the new divisor 105 and the new remainder 77, and apply the division lemma to get
105 = 77 x 1 + 28
We consider the new divisor 77 and the new remainder 28,and apply the division lemma to get
77 = 28 x 2 + 21
We consider the new divisor 28 and the new remainder 21,and apply the division lemma to get
28 = 21 x 1 + 7
We consider the new divisor 21 and the new remainder 7,and apply the division lemma to get
21 = 7 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 287 and 392 is 7
Notice that 7 = HCF(21,7) = HCF(28,21) = HCF(77,28) = HCF(105,77) = HCF(287,105) = HCF(392,287) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 743 > 7, we apply the division lemma to 743 and 7, to get
743 = 7 x 106 + 1
Step 2: Since the reminder 7 ≠ 0, we apply division lemma to 1 and 7, to get
7 = 1 x 7 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 7 and 743 is 1
Notice that 1 = HCF(7,1) = HCF(743,7) .
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Frequently Asked Questions on HCF of 287, 392, 743 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 287, 392, 743?
Answer: HCF of 287, 392, 743 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 287, 392, 743 using Euclid's Algorithm?
Answer: For arbitrary numbers 287, 392, 743 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.