Highest Common Factor of 663, 521, 70 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 663, 521, 70 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 663, 521, 70 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 663, 521, 70 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 663, 521, 70 is 1.
HCF(663, 521, 70) = 1
HCF of 663, 521, 70 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 663, 521, 70 is 1.
Highest Common Factor of 663,521,70 is 1
Step 1: Since 663 > 521, we apply the division lemma to 663 and 521, to get
663 = 521 x 1 + 142
Step 2: Since the reminder 521 ≠ 0, we apply division lemma to 142 and 521, to get
521 = 142 x 3 + 95
Step 3: We consider the new divisor 142 and the new remainder 95, and apply the division lemma to get
142 = 95 x 1 + 47
We consider the new divisor 95 and the new remainder 47,and apply the division lemma to get
95 = 47 x 2 + 1
We consider the new divisor 47 and the new remainder 1,and apply the division lemma to get
47 = 1 x 47 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 663 and 521 is 1
Notice that 1 = HCF(47,1) = HCF(95,47) = HCF(142,95) = HCF(521,142) = HCF(663,521) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 70 > 1, we apply the division lemma to 70 and 1, to get
70 = 1 x 70 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 70 is 1
Notice that 1 = HCF(70,1) .
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Frequently Asked Questions on HCF of 663, 521, 70 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 663, 521, 70?
Answer: HCF of 663, 521, 70 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 663, 521, 70 using Euclid's Algorithm?
Answer: For arbitrary numbers 663, 521, 70 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.