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 389, 543, 25 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 389, 543, 25 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 389, 543, 25 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 389, 543, 25 is 1.
HCF(389, 543, 25) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 389, 543, 25 is 1.
Step 1: Since 543 > 389, we apply the division lemma to 543 and 389, to get
543 = 389 x 1 + 154
Step 2: Since the reminder 389 ≠ 0, we apply division lemma to 154 and 389, to get
389 = 154 x 2 + 81
Step 3: We consider the new divisor 154 and the new remainder 81, and apply the division lemma to get
154 = 81 x 1 + 73
We consider the new divisor 81 and the new remainder 73,and apply the division lemma to get
81 = 73 x 1 + 8
We consider the new divisor 73 and the new remainder 8,and apply the division lemma to get
73 = 8 x 9 + 1
We consider the new divisor 8 and the new remainder 1,and apply the division lemma to get
8 = 1 x 8 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 389 and 543 is 1
Notice that 1 = HCF(8,1) = HCF(73,8) = HCF(81,73) = HCF(154,81) = HCF(389,154) = HCF(543,389) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 25 > 1, we apply the division lemma to 25 and 1, to get
25 = 1 x 25 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 25 is 1
Notice that 1 = HCF(25,1) .
Here are some samples of HCF using Euclid's Algorithm calculations.
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 389, 543, 25?
Answer: HCF of 389, 543, 25 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 389, 543, 25 using Euclid's Algorithm?
Answer: For arbitrary numbers 389, 543, 25 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.