Highest Common Factor of 387, 957, 749 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 387, 957, 749 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 387, 957, 749 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 387, 957, 749 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 387, 957, 749 is 1.
HCF(387, 957, 749) = 1
HCF of 387, 957, 749 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 387, 957, 749 is 1.
Highest Common Factor of 387,957,749 is 1
Step 1: Since 957 > 387, we apply the division lemma to 957 and 387, to get
957 = 387 x 2 + 183
Step 2: Since the reminder 387 ≠ 0, we apply division lemma to 183 and 387, to get
387 = 183 x 2 + 21
Step 3: We consider the new divisor 183 and the new remainder 21, and apply the division lemma to get
183 = 21 x 8 + 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 387 and 957 is 3
Notice that 3 = HCF(6,3) = HCF(15,6) = HCF(21,15) = HCF(183,21) = HCF(387,183) = HCF(957,387) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 749 > 3, we apply the division lemma to 749 and 3, to get
749 = 3 x 249 + 2
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 2 and 3, to get
3 = 2 x 1 + 1
Step 3: 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 3 and 749 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(749,3) .
HCF using Euclid's Algorithm Calculation Examples
Here are some samples of HCF using Euclid's Algorithm calculations.
Frequently Asked Questions on HCF of 387, 957, 749 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 387, 957, 749?
Answer: HCF of 387, 957, 749 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 387, 957, 749 using Euclid's Algorithm?
Answer: For arbitrary numbers 387, 957, 749 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.