Highest Common Factor of 855, 981, 909 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 855, 981, 909 i.e. 9 the largest integer that leaves a remainder zero for all numbers.
HCF of 855, 981, 909 is 9 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 855, 981, 909 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 855, 981, 909 is 9.
HCF(855, 981, 909) = 9
HCF of 855, 981, 909 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 855, 981, 909 is 9.
Highest Common Factor of 855,981,909 is 9
Step 1: Since 981 > 855, we apply the division lemma to 981 and 855, to get
981 = 855 x 1 + 126
Step 2: Since the reminder 855 ≠ 0, we apply division lemma to 126 and 855, to get
855 = 126 x 6 + 99
Step 3: We consider the new divisor 126 and the new remainder 99, and apply the division lemma to get
126 = 99 x 1 + 27
We consider the new divisor 99 and the new remainder 27,and apply the division lemma to get
99 = 27 x 3 + 18
We consider the new divisor 27 and the new remainder 18,and apply the division lemma to get
27 = 18 x 1 + 9
We consider the new divisor 18 and the new remainder 9,and apply the division lemma to get
18 = 9 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 9, the HCF of 855 and 981 is 9
Notice that 9 = HCF(18,9) = HCF(27,18) = HCF(99,27) = HCF(126,99) = HCF(855,126) = HCF(981,855) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 909 > 9, we apply the division lemma to 909 and 9, to get
909 = 9 x 101 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 9, the HCF of 9 and 909 is 9
Notice that 9 = HCF(909,9) .
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Frequently Asked Questions on HCF of 855, 981, 909 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 855, 981, 909?
Answer: HCF of 855, 981, 909 is 9 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 855, 981, 909 using Euclid's Algorithm?
Answer: For arbitrary numbers 855, 981, 909 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.