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 681, 475, 782 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 681, 475, 782 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 681, 475, 782 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 681, 475, 782 is 1.
HCF(681, 475, 782) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 681, 475, 782 is 1.
Step 1: Since 681 > 475, we apply the division lemma to 681 and 475, to get
681 = 475 x 1 + 206
Step 2: Since the reminder 475 ≠ 0, we apply division lemma to 206 and 475, to get
475 = 206 x 2 + 63
Step 3: We consider the new divisor 206 and the new remainder 63, and apply the division lemma to get
206 = 63 x 3 + 17
We consider the new divisor 63 and the new remainder 17,and apply the division lemma to get
63 = 17 x 3 + 12
We consider the new divisor 17 and the new remainder 12,and apply the division lemma to get
17 = 12 x 1 + 5
We consider the new divisor 12 and the new remainder 5,and apply the division lemma to get
12 = 5 x 2 + 2
We consider the new divisor 5 and the new remainder 2,and apply the division lemma to get
5 = 2 x 2 + 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 681 and 475 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(12,5) = HCF(17,12) = HCF(63,17) = HCF(206,63) = HCF(475,206) = HCF(681,475) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 782 > 1, we apply the division lemma to 782 and 1, to get
782 = 1 x 782 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 782 is 1
Notice that 1 = HCF(782,1) .
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 681, 475, 782?
Answer: HCF of 681, 475, 782 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 681, 475, 782 using Euclid's Algorithm?
Answer: For arbitrary numbers 681, 475, 782 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.