Highest Common Factor of 831, 990, 155 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 831, 990, 155 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 831, 990, 155 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 831, 990, 155 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 831, 990, 155 is 1.
HCF(831, 990, 155) = 1
HCF of 831, 990, 155 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 831, 990, 155 is 1.
Highest Common Factor of 831,990,155 is 1
Step 1: Since 990 > 831, we apply the division lemma to 990 and 831, to get
990 = 831 x 1 + 159
Step 2: Since the reminder 831 ≠ 0, we apply division lemma to 159 and 831, to get
831 = 159 x 5 + 36
Step 3: We consider the new divisor 159 and the new remainder 36, and apply the division lemma to get
159 = 36 x 4 + 15
We consider the new divisor 36 and the new remainder 15,and apply the division lemma to get
36 = 15 x 2 + 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 831 and 990 is 3
Notice that 3 = HCF(6,3) = HCF(15,6) = HCF(36,15) = HCF(159,36) = HCF(831,159) = HCF(990,831) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 155 > 3, we apply the division lemma to 155 and 3, to get
155 = 3 x 51 + 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 155 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(155,3) .
HCF using Euclid's Algorithm Calculation Examples
Here are some samples of HCF using Euclid's Algorithm calculations.
Frequently Asked Questions on HCF of 831, 990, 155 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 831, 990, 155?
Answer: HCF of 831, 990, 155 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 831, 990, 155 using Euclid's Algorithm?
Answer: For arbitrary numbers 831, 990, 155 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
