Highest Common Factor of 664, 6561 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 664, 6561 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 664, 6561 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 664, 6561 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 664, 6561 is 1.
HCF(664, 6561) = 1
HCF of 664, 6561 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 664, 6561 is 1.
Highest Common Factor of 664,6561 is 1
Step 1: Since 6561 > 664, we apply the division lemma to 6561 and 664, to get
6561 = 664 x 9 + 585
Step 2: Since the reminder 664 ≠ 0, we apply division lemma to 585 and 664, to get
664 = 585 x 1 + 79
Step 3: We consider the new divisor 585 and the new remainder 79, and apply the division lemma to get
585 = 79 x 7 + 32
We consider the new divisor 79 and the new remainder 32,and apply the division lemma to get
79 = 32 x 2 + 15
We consider the new divisor 32 and the new remainder 15,and apply the division lemma to get
32 = 15 x 2 + 2
We consider the new divisor 15 and the new remainder 2,and apply the division lemma to get
15 = 2 x 7 + 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 664 and 6561 is 1
Notice that 1 = HCF(2,1) = HCF(15,2) = HCF(32,15) = HCF(79,32) = HCF(585,79) = HCF(664,585) = HCF(6561,664) .
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Frequently Asked Questions on HCF of 664, 6561 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 664, 6561?
Answer: HCF of 664, 6561 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 664, 6561 using Euclid's Algorithm?
Answer: For arbitrary numbers 664, 6561 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.