Highest Common Factor of 721, 889, 273 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 721, 889, 273 i.e. 7 the largest integer that leaves a remainder zero for all numbers.
HCF of 721, 889, 273 is 7 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 721, 889, 273 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 721, 889, 273 is 7.
HCF(721, 889, 273) = 7
HCF of 721, 889, 273 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 721, 889, 273 is 7.
Highest Common Factor of 721,889,273 is 7
Step 1: Since 889 > 721, we apply the division lemma to 889 and 721, to get
889 = 721 x 1 + 168
Step 2: Since the reminder 721 ≠ 0, we apply division lemma to 168 and 721, to get
721 = 168 x 4 + 49
Step 3: We consider the new divisor 168 and the new remainder 49, and apply the division lemma to get
168 = 49 x 3 + 21
We consider the new divisor 49 and the new remainder 21,and apply the division lemma to get
49 = 21 x 2 + 7
We consider the new divisor 21 and the new remainder 7,and apply the division lemma to get
21 = 7 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 721 and 889 is 7
Notice that 7 = HCF(21,7) = HCF(49,21) = HCF(168,49) = HCF(721,168) = HCF(889,721) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 273 > 7, we apply the division lemma to 273 and 7, to get
273 = 7 x 39 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 7 and 273 is 7
Notice that 7 = HCF(273,7) .
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Frequently Asked Questions on HCF of 721, 889, 273 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 721, 889, 273?
Answer: HCF of 721, 889, 273 is 7 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 721, 889, 273 using Euclid's Algorithm?
Answer: For arbitrary numbers 721, 889, 273 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.