Highest Common Factor of 135, 78, 388 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 135, 78, 388 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 135, 78, 388 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 135, 78, 388 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 135, 78, 388 is 1.
HCF(135, 78, 388) = 1
HCF of 135, 78, 388 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 135, 78, 388 is 1.
Highest Common Factor of 135,78,388 is 1
Step 1: Since 135 > 78, we apply the division lemma to 135 and 78, to get
135 = 78 x 1 + 57
Step 2: Since the reminder 78 ≠ 0, we apply division lemma to 57 and 78, to get
78 = 57 x 1 + 21
Step 3: We consider the new divisor 57 and the new remainder 21, and apply the division lemma to get
57 = 21 x 2 + 15
We consider the new divisor 21 and the new remainder 15,and apply the division lemma to get
21 = 15 x 1 + 6
We consider the new divisor 15 and the new remainder 6,and apply the division lemma to get
15 = 6 x 2 + 3
We consider the new divisor 6 and the new remainder 3,and apply the division lemma to get
6 = 3 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 135 and 78 is 3
Notice that 3 = HCF(6,3) = HCF(15,6) = HCF(21,15) = HCF(57,21) = HCF(78,57) = HCF(135,78) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 388 > 3, we apply the division lemma to 388 and 3, to get
388 = 3 x 129 + 1
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 1 and 3, 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 3 and 388 is 1
Notice that 1 = HCF(3,1) = HCF(388,3) .
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Frequently Asked Questions on HCF of 135, 78, 388 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 135, 78, 388?
Answer: HCF of 135, 78, 388 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 135, 78, 388 using Euclid's Algorithm?
Answer: For arbitrary numbers 135, 78, 388 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.