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 687, 875, 497 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 687, 875, 497 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 687, 875, 497 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 687, 875, 497 is 1.
HCF(687, 875, 497) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 687, 875, 497 is 1.
Step 1: Since 875 > 687, we apply the division lemma to 875 and 687, to get
875 = 687 x 1 + 188
Step 2: Since the reminder 687 ≠ 0, we apply division lemma to 188 and 687, to get
687 = 188 x 3 + 123
Step 3: We consider the new divisor 188 and the new remainder 123, and apply the division lemma to get
188 = 123 x 1 + 65
We consider the new divisor 123 and the new remainder 65,and apply the division lemma to get
123 = 65 x 1 + 58
We consider the new divisor 65 and the new remainder 58,and apply the division lemma to get
65 = 58 x 1 + 7
We consider the new divisor 58 and the new remainder 7,and apply the division lemma to get
58 = 7 x 8 + 2
We consider the new divisor 7 and the new remainder 2,and apply the division lemma to get
7 = 2 x 3 + 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 687 and 875 is 1
Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(58,7) = HCF(65,58) = HCF(123,65) = HCF(188,123) = HCF(687,188) = HCF(875,687) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 497 > 1, we apply the division lemma to 497 and 1, to get
497 = 1 x 497 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 497 is 1
Notice that 1 = HCF(497,1) .
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 687, 875, 497?
Answer: HCF of 687, 875, 497 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 687, 875, 497 using Euclid's Algorithm?
Answer: For arbitrary numbers 687, 875, 497 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.