Highest Common Factor of 648, 284, 438 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 648, 284, 438 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 648, 284, 438 is 2 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 648, 284, 438 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 648, 284, 438 is 2.
HCF(648, 284, 438) = 2
HCF of 648, 284, 438 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 648, 284, 438 is 2.
Highest Common Factor of 648,284,438 is 2
Step 1: Since 648 > 284, we apply the division lemma to 648 and 284, to get
648 = 284 x 2 + 80
Step 2: Since the reminder 284 ≠ 0, we apply division lemma to 80 and 284, to get
284 = 80 x 3 + 44
Step 3: We consider the new divisor 80 and the new remainder 44, and apply the division lemma to get
80 = 44 x 1 + 36
We consider the new divisor 44 and the new remainder 36,and apply the division lemma to get
44 = 36 x 1 + 8
We consider the new divisor 36 and the new remainder 8,and apply the division lemma to get
36 = 8 x 4 + 4
We consider the new divisor 8 and the new remainder 4,and apply the division lemma to get
8 = 4 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 4, the HCF of 648 and 284 is 4
Notice that 4 = HCF(8,4) = HCF(36,8) = HCF(44,36) = HCF(80,44) = HCF(284,80) = HCF(648,284) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 438 > 4, we apply the division lemma to 438 and 4, to get
438 = 4 x 109 + 2
Step 2: Since the reminder 4 ≠ 0, we apply division lemma to 2 and 4, to get
4 = 2 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 4 and 438 is 2
Notice that 2 = HCF(4,2) = HCF(438,4) .
HCF using Euclid's Algorithm Calculation Examples
Here are some samples of HCF using Euclid's Algorithm calculations.
Frequently Asked Questions on HCF of 648, 284, 438 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 648, 284, 438?
Answer: HCF of 648, 284, 438 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 648, 284, 438 using Euclid's Algorithm?
Answer: For arbitrary numbers 648, 284, 438 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.