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 805, 427, 144 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 805, 427, 144 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 805, 427, 144 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 805, 427, 144 is 1.
HCF(805, 427, 144) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 805, 427, 144 is 1.
Step 1: Since 805 > 427, we apply the division lemma to 805 and 427, to get
805 = 427 x 1 + 378
Step 2: Since the reminder 427 ≠ 0, we apply division lemma to 378 and 427, to get
427 = 378 x 1 + 49
Step 3: We consider the new divisor 378 and the new remainder 49, and apply the division lemma to get
378 = 49 x 7 + 35
We consider the new divisor 49 and the new remainder 35,and apply the division lemma to get
49 = 35 x 1 + 14
We consider the new divisor 35 and the new remainder 14,and apply the division lemma to get
35 = 14 x 2 + 7
We consider the new divisor 14 and the new remainder 7,and apply the division lemma to get
14 = 7 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 805 and 427 is 7
Notice that 7 = HCF(14,7) = HCF(35,14) = HCF(49,35) = HCF(378,49) = HCF(427,378) = HCF(805,427) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 144 > 7, we apply the division lemma to 144 and 7, to get
144 = 7 x 20 + 4
Step 2: Since the reminder 7 ≠ 0, we apply division lemma to 4 and 7, to get
7 = 4 x 1 + 3
Step 3: We consider the new divisor 4 and the new remainder 3, and apply the division lemma to get
4 = 3 x 1 + 1
We consider the new divisor 3 and the new remainder 1, and apply the division lemma 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 7 and 144 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(7,4) = HCF(144,7) .
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 805, 427, 144?
Answer: HCF of 805, 427, 144 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 805, 427, 144 using Euclid's Algorithm?
Answer: For arbitrary numbers 805, 427, 144 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.