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 771, 9918, 2615 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 771, 9918, 2615 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 771, 9918, 2615 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 771, 9918, 2615 is 1.
HCF(771, 9918, 2615) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 771, 9918, 2615 is 1.
Step 1: Since 9918 > 771, we apply the division lemma to 9918 and 771, to get
9918 = 771 x 12 + 666
Step 2: Since the reminder 771 ≠ 0, we apply division lemma to 666 and 771, to get
771 = 666 x 1 + 105
Step 3: We consider the new divisor 666 and the new remainder 105, and apply the division lemma to get
666 = 105 x 6 + 36
We consider the new divisor 105 and the new remainder 36,and apply the division lemma to get
105 = 36 x 2 + 33
We consider the new divisor 36 and the new remainder 33,and apply the division lemma to get
36 = 33 x 1 + 3
We consider the new divisor 33 and the new remainder 3,and apply the division lemma to get
33 = 3 x 11 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 771 and 9918 is 3
Notice that 3 = HCF(33,3) = HCF(36,33) = HCF(105,36) = HCF(666,105) = HCF(771,666) = HCF(9918,771) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 2615 > 3, we apply the division lemma to 2615 and 3, to get
2615 = 3 x 871 + 2
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 2 and 3, to get
3 = 2 x 1 + 1
Step 3: 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 3 and 2615 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(2615,3) .
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 771, 9918, 2615?
Answer: HCF of 771, 9918, 2615 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 771, 9918, 2615 using Euclid's Algorithm?
Answer: For arbitrary numbers 771, 9918, 2615 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.