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 75, 45, 82, 671 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 75, 45, 82, 671 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 75, 45, 82, 671 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 75, 45, 82, 671 is 1.
HCF(75, 45, 82, 671) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 75, 45, 82, 671 is 1.
Step 1: Since 75 > 45, we apply the division lemma to 75 and 45, to get
75 = 45 x 1 + 30
Step 2: Since the reminder 45 ≠ 0, we apply division lemma to 30 and 45, to get
45 = 30 x 1 + 15
Step 3: We consider the new divisor 30 and the new remainder 15, and apply the division lemma to get
30 = 15 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 15, the HCF of 75 and 45 is 15
Notice that 15 = HCF(30,15) = HCF(45,30) = HCF(75,45) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 82 > 15, we apply the division lemma to 82 and 15, to get
82 = 15 x 5 + 7
Step 2: Since the reminder 15 ≠ 0, we apply division lemma to 7 and 15, to get
15 = 7 x 2 + 1
Step 3: We consider the new divisor 7 and the new remainder 1, and apply the division lemma to get
7 = 1 x 7 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 15 and 82 is 1
Notice that 1 = HCF(7,1) = HCF(15,7) = HCF(82,15) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 671 > 1, we apply the division lemma to 671 and 1, to get
671 = 1 x 671 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 671 is 1
Notice that 1 = HCF(671,1) .
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 75, 45, 82, 671?
Answer: HCF of 75, 45, 82, 671 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 75, 45, 82, 671 using Euclid's Algorithm?
Answer: For arbitrary numbers 75, 45, 82, 671 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.