Highest Common Factor of 489, 179, 90 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 489, 179, 90 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 489, 179, 90 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 489, 179, 90 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 489, 179, 90 is 1.
HCF(489, 179, 90) = 1
HCF of 489, 179, 90 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 489, 179, 90 is 1.
Highest Common Factor of 489,179,90 is 1
Step 1: Since 489 > 179, we apply the division lemma to 489 and 179, to get
489 = 179 x 2 + 131
Step 2: Since the reminder 179 ≠ 0, we apply division lemma to 131 and 179, to get
179 = 131 x 1 + 48
Step 3: We consider the new divisor 131 and the new remainder 48, and apply the division lemma to get
131 = 48 x 2 + 35
We consider the new divisor 48 and the new remainder 35,and apply the division lemma to get
48 = 35 x 1 + 13
We consider the new divisor 35 and the new remainder 13,and apply the division lemma to get
35 = 13 x 2 + 9
We consider the new divisor 13 and the new remainder 9,and apply the division lemma to get
13 = 9 x 1 + 4
We consider the new divisor 9 and the new remainder 4,and apply the division lemma to get
9 = 4 x 2 + 1
We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 489 and 179 is 1
Notice that 1 = HCF(4,1) = HCF(9,4) = HCF(13,9) = HCF(35,13) = HCF(48,35) = HCF(131,48) = HCF(179,131) = HCF(489,179) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 90 > 1, we apply the division lemma to 90 and 1, to get
90 = 1 x 90 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 90 is 1
Notice that 1 = HCF(90,1) .
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Frequently Asked Questions on HCF of 489, 179, 90 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 489, 179, 90?
Answer: HCF of 489, 179, 90 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 489, 179, 90 using Euclid's Algorithm?
Answer: For arbitrary numbers 489, 179, 90 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.