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 6861, 7731 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 6861, 7731 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 6861, 7731 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 6861, 7731 is 3.
HCF(6861, 7731) = 3
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 6861, 7731 is 3.
Step 1: Since 7731 > 6861, we apply the division lemma to 7731 and 6861, to get
7731 = 6861 x 1 + 870
Step 2: Since the reminder 6861 ≠ 0, we apply division lemma to 870 and 6861, to get
6861 = 870 x 7 + 771
Step 3: We consider the new divisor 870 and the new remainder 771, and apply the division lemma to get
870 = 771 x 1 + 99
We consider the new divisor 771 and the new remainder 99,and apply the division lemma to get
771 = 99 x 7 + 78
We consider the new divisor 99 and the new remainder 78,and apply the division lemma to get
99 = 78 x 1 + 21
We consider the new divisor 78 and the new remainder 21,and apply the division lemma to get
78 = 21 x 3 + 15
We consider the new divisor 21 and the new remainder 15,and apply the division lemma to get
21 = 15 x 1 + 6
We consider the new divisor 15 and the new remainder 6,and apply the division lemma to get
15 = 6 x 2 + 3
We consider the new divisor 6 and the new remainder 3,and apply the division lemma to get
6 = 3 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 6861 and 7731 is 3
Notice that 3 = HCF(6,3) = HCF(15,6) = HCF(21,15) = HCF(78,21) = HCF(99,78) = HCF(771,99) = HCF(870,771) = HCF(6861,870) = HCF(7731,6861) .
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 6861, 7731?
Answer: HCF of 6861, 7731 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 6861, 7731 using Euclid's Algorithm?
Answer: For arbitrary numbers 6861, 7731 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.