Highest Common Factor of 655, 830, 489 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 655, 830, 489 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 655, 830, 489 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 655, 830, 489 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 655, 830, 489 is 1.
HCF(655, 830, 489) = 1
HCF of 655, 830, 489 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 655, 830, 489 is 1.
Highest Common Factor of 655,830,489 is 1
Step 1: Since 830 > 655, we apply the division lemma to 830 and 655, to get
830 = 655 x 1 + 175
Step 2: Since the reminder 655 ≠ 0, we apply division lemma to 175 and 655, to get
655 = 175 x 3 + 130
Step 3: We consider the new divisor 175 and the new remainder 130, and apply the division lemma to get
175 = 130 x 1 + 45
We consider the new divisor 130 and the new remainder 45,and apply the division lemma to get
130 = 45 x 2 + 40
We consider the new divisor 45 and the new remainder 40,and apply the division lemma to get
45 = 40 x 1 + 5
We consider the new divisor 40 and the new remainder 5,and apply the division lemma to get
40 = 5 x 8 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 655 and 830 is 5
Notice that 5 = HCF(40,5) = HCF(45,40) = HCF(130,45) = HCF(175,130) = HCF(655,175) = HCF(830,655) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 489 > 5, we apply the division lemma to 489 and 5, to get
489 = 5 x 97 + 4
Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 4 and 5, to get
5 = 4 x 1 + 1
Step 3: 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 5 and 489 is 1
Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(489,5) .
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Frequently Asked Questions on HCF of 655, 830, 489 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 655, 830, 489?
Answer: HCF of 655, 830, 489 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 655, 830, 489 using Euclid's Algorithm?
Answer: For arbitrary numbers 655, 830, 489 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
