Highest Common Factor of 747, 155, 805 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 747, 155, 805 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 747, 155, 805 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 747, 155, 805 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 747, 155, 805 is 1.
HCF(747, 155, 805) = 1
HCF of 747, 155, 805 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 747, 155, 805 is 1.
Highest Common Factor of 747,155,805 is 1
Step 1: Since 747 > 155, we apply the division lemma to 747 and 155, to get
747 = 155 x 4 + 127
Step 2: Since the reminder 155 ≠ 0, we apply division lemma to 127 and 155, to get
155 = 127 x 1 + 28
Step 3: We consider the new divisor 127 and the new remainder 28, and apply the division lemma to get
127 = 28 x 4 + 15
We consider the new divisor 28 and the new remainder 15,and apply the division lemma to get
28 = 15 x 1 + 13
We consider the new divisor 15 and the new remainder 13,and apply the division lemma to get
15 = 13 x 1 + 2
We consider the new divisor 13 and the new remainder 2,and apply the division lemma to get
13 = 2 x 6 + 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 747 and 155 is 1
Notice that 1 = HCF(2,1) = HCF(13,2) = HCF(15,13) = HCF(28,15) = HCF(127,28) = HCF(155,127) = HCF(747,155) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 805 > 1, we apply the division lemma to 805 and 1, to get
805 = 1 x 805 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 805 is 1
Notice that 1 = HCF(805,1) .
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Frequently Asked Questions on HCF of 747, 155, 805 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 747, 155, 805?
Answer: HCF of 747, 155, 805 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 747, 155, 805 using Euclid's Algorithm?
Answer: For arbitrary numbers 747, 155, 805 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
