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 646, 340, 194 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 646, 340, 194 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 646, 340, 194 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 646, 340, 194 is 2.
HCF(646, 340, 194) = 2
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 646, 340, 194 is 2.
Step 1: Since 646 > 340, we apply the division lemma to 646 and 340, to get
646 = 340 x 1 + 306
Step 2: Since the reminder 340 ≠ 0, we apply division lemma to 306 and 340, to get
340 = 306 x 1 + 34
Step 3: We consider the new divisor 306 and the new remainder 34, and apply the division lemma to get
306 = 34 x 9 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 34, the HCF of 646 and 340 is 34
Notice that 34 = HCF(306,34) = HCF(340,306) = HCF(646,340) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 194 > 34, we apply the division lemma to 194 and 34, to get
194 = 34 x 5 + 24
Step 2: Since the reminder 34 ≠ 0, we apply division lemma to 24 and 34, to get
34 = 24 x 1 + 10
Step 3: We consider the new divisor 24 and the new remainder 10, and apply the division lemma to get
24 = 10 x 2 + 4
We consider the new divisor 10 and the new remainder 4,and apply the division lemma to get
10 = 4 x 2 + 2
We consider the new divisor 4 and the new remainder 2,and apply the division lemma 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 34 and 194 is 2
Notice that 2 = HCF(4,2) = HCF(10,4) = HCF(24,10) = HCF(34,24) = HCF(194,34) .
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 646, 340, 194?
Answer: HCF of 646, 340, 194 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 646, 340, 194 using Euclid's Algorithm?
Answer: For arbitrary numbers 646, 340, 194 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.