Highest Common Factor of 455, 644, 928 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 455, 644, 928 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 455, 644, 928 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 455, 644, 928 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 455, 644, 928 is 1.
HCF(455, 644, 928) = 1
HCF of 455, 644, 928 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 455, 644, 928 is 1.
Highest Common Factor of 455,644,928 is 1
Step 1: Since 644 > 455, we apply the division lemma to 644 and 455, to get
644 = 455 x 1 + 189
Step 2: Since the reminder 455 ≠ 0, we apply division lemma to 189 and 455, to get
455 = 189 x 2 + 77
Step 3: We consider the new divisor 189 and the new remainder 77, and apply the division lemma to get
189 = 77 x 2 + 35
We consider the new divisor 77 and the new remainder 35,and apply the division lemma to get
77 = 35 x 2 + 7
We consider the new divisor 35 and the new remainder 7,and apply the division lemma to get
35 = 7 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 455 and 644 is 7
Notice that 7 = HCF(35,7) = HCF(77,35) = HCF(189,77) = HCF(455,189) = HCF(644,455) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 928 > 7, we apply the division lemma to 928 and 7, to get
928 = 7 x 132 + 4
Step 2: Since the reminder 7 ≠ 0, we apply division lemma to 4 and 7, to get
7 = 4 x 1 + 3
Step 3: We consider the new divisor 4 and the new remainder 3, and apply the division lemma to get
4 = 3 x 1 + 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 7 and 928 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(7,4) = HCF(928,7) .
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Frequently Asked Questions on HCF of 455, 644, 928 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 455, 644, 928?
Answer: HCF of 455, 644, 928 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 455, 644, 928 using Euclid's Algorithm?
Answer: For arbitrary numbers 455, 644, 928 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.