Highest Common Factor of 640, 340, 12 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 640, 340, 12 i.e. 4 the largest integer that leaves a remainder zero for all numbers.
HCF of 640, 340, 12 is 4 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 640, 340, 12 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 640, 340, 12 is 4.
HCF(640, 340, 12) = 4
HCF of 640, 340, 12 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 640, 340, 12 is 4.
Highest Common Factor of 640,340,12 is 4
Step 1: Since 640 > 340, we apply the division lemma to 640 and 340, to get
640 = 340 x 1 + 300
Step 2: Since the reminder 340 ≠ 0, we apply division lemma to 300 and 340, to get
340 = 300 x 1 + 40
Step 3: We consider the new divisor 300 and the new remainder 40, and apply the division lemma to get
300 = 40 x 7 + 20
We consider the new divisor 40 and the new remainder 20, and apply the division lemma to get
40 = 20 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 20, the HCF of 640 and 340 is 20
Notice that 20 = HCF(40,20) = HCF(300,40) = HCF(340,300) = HCF(640,340) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 20 > 12, we apply the division lemma to 20 and 12, to get
20 = 12 x 1 + 8
Step 2: Since the reminder 12 ≠ 0, we apply division lemma to 8 and 12, to get
12 = 8 x 1 + 4
Step 3: 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 20 and 12 is 4
Notice that 4 = HCF(8,4) = HCF(12,8) = HCF(20,12) .
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Frequently Asked Questions on HCF of 640, 340, 12 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 640, 340, 12?
Answer: HCF of 640, 340, 12 is 4 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 640, 340, 12 using Euclid's Algorithm?
Answer: For arbitrary numbers 640, 340, 12 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.