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 231, 822, 849, 151 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 231, 822, 849, 151 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 231, 822, 849, 151 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 231, 822, 849, 151 is 1.
HCF(231, 822, 849, 151) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 231, 822, 849, 151 is 1.
Step 1: Since 822 > 231, we apply the division lemma to 822 and 231, to get
822 = 231 x 3 + 129
Step 2: Since the reminder 231 ≠ 0, we apply division lemma to 129 and 231, to get
231 = 129 x 1 + 102
Step 3: We consider the new divisor 129 and the new remainder 102, and apply the division lemma to get
129 = 102 x 1 + 27
We consider the new divisor 102 and the new remainder 27,and apply the division lemma to get
102 = 27 x 3 + 21
We consider the new divisor 27 and the new remainder 21,and apply the division lemma to get
27 = 21 x 1 + 6
We consider the new divisor 21 and the new remainder 6,and apply the division lemma to get
21 = 6 x 3 + 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 231 and 822 is 3
Notice that 3 = HCF(6,3) = HCF(21,6) = HCF(27,21) = HCF(102,27) = HCF(129,102) = HCF(231,129) = HCF(822,231) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 849 > 3, we apply the division lemma to 849 and 3, to get
849 = 3 x 283 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 3 and 849 is 3
Notice that 3 = HCF(849,3) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 151 > 3, we apply the division lemma to 151 and 3, to get
151 = 3 x 50 + 1
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 1 and 3, to get
3 = 1 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 3 and 151 is 1
Notice that 1 = HCF(3,1) = HCF(151,3) .
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 231, 822, 849, 151?
Answer: HCF of 231, 822, 849, 151 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 231, 822, 849, 151 using Euclid's Algorithm?
Answer: For arbitrary numbers 231, 822, 849, 151 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.