Highest Common Factor of 661, 580, 749 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 661, 580, 749 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 661, 580, 749 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 661, 580, 749 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 661, 580, 749 is 1.
HCF(661, 580, 749) = 1
HCF of 661, 580, 749 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 661, 580, 749 is 1.
Highest Common Factor of 661,580,749 is 1
Step 1: Since 661 > 580, we apply the division lemma to 661 and 580, to get
661 = 580 x 1 + 81
Step 2: Since the reminder 580 ≠ 0, we apply division lemma to 81 and 580, to get
580 = 81 x 7 + 13
Step 3: We consider the new divisor 81 and the new remainder 13, and apply the division lemma to get
81 = 13 x 6 + 3
We consider the new divisor 13 and the new remainder 3,and apply the division lemma to get
13 = 3 x 4 + 1
We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get
3 = 1 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 661 and 580 is 1
Notice that 1 = HCF(3,1) = HCF(13,3) = HCF(81,13) = HCF(580,81) = HCF(661,580) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 749 > 1, we apply the division lemma to 749 and 1, to get
749 = 1 x 749 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 749 is 1
Notice that 1 = HCF(749,1) .
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Frequently Asked Questions on HCF of 661, 580, 749 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 661, 580, 749?
Answer: HCF of 661, 580, 749 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 661, 580, 749 using Euclid's Algorithm?
Answer: For arbitrary numbers 661, 580, 749 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.