Highest Common Factor of 987, 687 using Euclid's algorithm
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 987, 687 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 987, 687 is 3 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 987, 687 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 987, 687 is 3.
HCF(987, 687) = 3
HCF of 987, 687 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 987, 687 is 3.
Highest Common Factor of 987,687 is 3
Step 1: Since 987 > 687, we apply the division lemma to 987 and 687, to get
987 = 687 x 1 + 300
Step 2: Since the reminder 687 ≠ 0, we apply division lemma to 300 and 687, to get
687 = 300 x 2 + 87
Step 3: We consider the new divisor 300 and the new remainder 87, and apply the division lemma to get
300 = 87 x 3 + 39
We consider the new divisor 87 and the new remainder 39,and apply the division lemma to get
87 = 39 x 2 + 9
We consider the new divisor 39 and the new remainder 9,and apply the division lemma to get
39 = 9 x 4 + 3
We consider the new divisor 9 and the new remainder 3,and apply the division lemma to get
9 = 3 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 987 and 687 is 3
Notice that 3 = HCF(9,3) = HCF(39,9) = HCF(87,39) = HCF(300,87) = HCF(687,300) = HCF(987,687) .
HCF using Euclid's Algorithm Calculation Examples
Here are some samples of HCF using Euclid's Algorithm calculations.
Frequently Asked Questions on HCF of 987, 687 using Euclid's Algorithm
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 987, 687?
Answer: HCF of 987, 687 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 987, 687 using Euclid's Algorithm?
Answer: For arbitrary numbers 987, 687 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
