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 435, 745, 728 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 435, 745, 728 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 435, 745, 728 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 435, 745, 728 is 1.
HCF(435, 745, 728) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 435, 745, 728 is 1.
Step 1: Since 745 > 435, we apply the division lemma to 745 and 435, to get
745 = 435 x 1 + 310
Step 2: Since the reminder 435 ≠ 0, we apply division lemma to 310 and 435, to get
435 = 310 x 1 + 125
Step 3: We consider the new divisor 310 and the new remainder 125, and apply the division lemma to get
310 = 125 x 2 + 60
We consider the new divisor 125 and the new remainder 60,and apply the division lemma to get
125 = 60 x 2 + 5
We consider the new divisor 60 and the new remainder 5,and apply the division lemma to get
60 = 5 x 12 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 435 and 745 is 5
Notice that 5 = HCF(60,5) = HCF(125,60) = HCF(310,125) = HCF(435,310) = HCF(745,435) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 728 > 5, we apply the division lemma to 728 and 5, to get
728 = 5 x 145 + 3
Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 3 and 5, to get
5 = 3 x 1 + 2
Step 3: We consider the new divisor 3 and the new remainder 2, and apply the division lemma to get
3 = 2 x 1 + 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 5 and 728 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(728,5) .
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 435, 745, 728?
Answer: HCF of 435, 745, 728 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 435, 745, 728 using Euclid's Algorithm?
Answer: For arbitrary numbers 435, 745, 728 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.