Highest Common Factor of 315, 405, 622, 81 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 315, 405, 622, 81 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 315, 405, 622, 81 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 315, 405, 622, 81 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 315, 405, 622, 81 is 1.
HCF(315, 405, 622, 81) = 1
HCF of 315, 405, 622, 81 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 315, 405, 622, 81 is 1.
Highest Common Factor of 315,405,622,81 is 1
Step 1: Since 405 > 315, we apply the division lemma to 405 and 315, to get
405 = 315 x 1 + 90
Step 2: Since the reminder 315 ≠ 0, we apply division lemma to 90 and 315, to get
315 = 90 x 3 + 45
Step 3: We consider the new divisor 90 and the new remainder 45, and apply the division lemma to get
90 = 45 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 45, the HCF of 315 and 405 is 45
Notice that 45 = HCF(90,45) = HCF(315,90) = HCF(405,315) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 622 > 45, we apply the division lemma to 622 and 45, to get
622 = 45 x 13 + 37
Step 2: Since the reminder 45 ≠ 0, we apply division lemma to 37 and 45, to get
45 = 37 x 1 + 8
Step 3: We consider the new divisor 37 and the new remainder 8, and apply the division lemma to get
37 = 8 x 4 + 5
We consider the new divisor 8 and the new remainder 5,and apply the division lemma to get
8 = 5 x 1 + 3
We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get
5 = 3 x 1 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 1
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 45 and 622 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(8,5) = HCF(37,8) = HCF(45,37) = HCF(622,45) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 81 > 1, we apply the division lemma to 81 and 1, to get
81 = 1 x 81 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 81 is 1
Notice that 1 = HCF(81,1) .
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Frequently Asked Questions on HCF of 315, 405, 622, 81 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 315, 405, 622, 81?
Answer: HCF of 315, 405, 622, 81 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 315, 405, 622, 81 using Euclid's Algorithm?
Answer: For arbitrary numbers 315, 405, 622, 81 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.