Highest Common Factor of 469, 637, 19 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 469, 637, 19 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 469, 637, 19 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 469, 637, 19 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 469, 637, 19 is 1.
HCF(469, 637, 19) = 1
HCF of 469, 637, 19 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 469, 637, 19 is 1.
Highest Common Factor of 469,637,19 is 1
Step 1: Since 637 > 469, we apply the division lemma to 637 and 469, to get
637 = 469 x 1 + 168
Step 2: Since the reminder 469 ≠ 0, we apply division lemma to 168 and 469, to get
469 = 168 x 2 + 133
Step 3: We consider the new divisor 168 and the new remainder 133, and apply the division lemma to get
168 = 133 x 1 + 35
We consider the new divisor 133 and the new remainder 35,and apply the division lemma to get
133 = 35 x 3 + 28
We consider the new divisor 35 and the new remainder 28,and apply the division lemma to get
35 = 28 x 1 + 7
We consider the new divisor 28 and the new remainder 7,and apply the division lemma to get
28 = 7 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 469 and 637 is 7
Notice that 7 = HCF(28,7) = HCF(35,28) = HCF(133,35) = HCF(168,133) = HCF(469,168) = HCF(637,469) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 19 > 7, we apply the division lemma to 19 and 7, to get
19 = 7 x 2 + 5
Step 2: Since the reminder 7 ≠ 0, we apply division lemma to 5 and 7, to get
7 = 5 x 1 + 2
Step 3: 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 7 and 19 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(7,5) = HCF(19,7) .
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Frequently Asked Questions on HCF of 469, 637, 19 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 469, 637, 19?
Answer: HCF of 469, 637, 19 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 469, 637, 19 using Euclid's Algorithm?
Answer: For arbitrary numbers 469, 637, 19 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.