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 198, 912, 830 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 198, 912, 830 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 198, 912, 830 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 198, 912, 830 is 2.
HCF(198, 912, 830) = 2
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 198, 912, 830 is 2.
Step 1: Since 912 > 198, we apply the division lemma to 912 and 198, to get
912 = 198 x 4 + 120
Step 2: Since the reminder 198 ≠ 0, we apply division lemma to 120 and 198, to get
198 = 120 x 1 + 78
Step 3: We consider the new divisor 120 and the new remainder 78, and apply the division lemma to get
120 = 78 x 1 + 42
We consider the new divisor 78 and the new remainder 42,and apply the division lemma to get
78 = 42 x 1 + 36
We consider the new divisor 42 and the new remainder 36,and apply the division lemma to get
42 = 36 x 1 + 6
We consider the new divisor 36 and the new remainder 6,and apply the division lemma to get
36 = 6 x 6 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 6, the HCF of 198 and 912 is 6
Notice that 6 = HCF(36,6) = HCF(42,36) = HCF(78,42) = HCF(120,78) = HCF(198,120) = HCF(912,198) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 830 > 6, we apply the division lemma to 830 and 6, to get
830 = 6 x 138 + 2
Step 2: Since the reminder 6 ≠ 0, we apply division lemma to 2 and 6, to get
6 = 2 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 6 and 830 is 2
Notice that 2 = HCF(6,2) = HCF(830,6) .
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 198, 912, 830?
Answer: HCF of 198, 912, 830 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 198, 912, 830 using Euclid's Algorithm?
Answer: For arbitrary numbers 198, 912, 830 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.