Highest Common Factor of 169, 721, 576, 78 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 169, 721, 576, 78 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 169, 721, 576, 78 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 169, 721, 576, 78 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 169, 721, 576, 78 is 1.
HCF(169, 721, 576, 78) = 1
HCF of 169, 721, 576, 78 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 169, 721, 576, 78 is 1.
Highest Common Factor of 169,721,576,78 is 1
Step 1: Since 721 > 169, we apply the division lemma to 721 and 169, to get
721 = 169 x 4 + 45
Step 2: Since the reminder 169 ≠ 0, we apply division lemma to 45 and 169, to get
169 = 45 x 3 + 34
Step 3: We consider the new divisor 45 and the new remainder 34, and apply the division lemma to get
45 = 34 x 1 + 11
We consider the new divisor 34 and the new remainder 11,and apply the division lemma to get
34 = 11 x 3 + 1
We consider the new divisor 11 and the new remainder 1,and apply the division lemma to get
11 = 1 x 11 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 169 and 721 is 1
Notice that 1 = HCF(11,1) = HCF(34,11) = HCF(45,34) = HCF(169,45) = HCF(721,169) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 576 > 1, we apply the division lemma to 576 and 1, to get
576 = 1 x 576 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 576 is 1
Notice that 1 = HCF(576,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 78 > 1, we apply the division lemma to 78 and 1, to get
78 = 1 x 78 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 78 is 1
Notice that 1 = HCF(78,1) .
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Frequently Asked Questions on HCF of 169, 721, 576, 78 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 169, 721, 576, 78?
Answer: HCF of 169, 721, 576, 78 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 169, 721, 576, 78 using Euclid's Algorithm?
Answer: For arbitrary numbers 169, 721, 576, 78 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.