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 210, 665, 930 i.e. 5 the largest integer that leaves a remainder zero for all numbers.
HCF of 210, 665, 930 is 5 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 210, 665, 930 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 210, 665, 930 is 5.
HCF(210, 665, 930) = 5
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 210, 665, 930 is 5.
Step 1: Since 665 > 210, we apply the division lemma to 665 and 210, to get
665 = 210 x 3 + 35
Step 2: Since the reminder 210 ≠ 0, we apply division lemma to 35 and 210, to get
210 = 35 x 6 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 35, the HCF of 210 and 665 is 35
Notice that 35 = HCF(210,35) = HCF(665,210) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 930 > 35, we apply the division lemma to 930 and 35, to get
930 = 35 x 26 + 20
Step 2: Since the reminder 35 ≠ 0, we apply division lemma to 20 and 35, to get
35 = 20 x 1 + 15
Step 3: We consider the new divisor 20 and the new remainder 15, and apply the division lemma to get
20 = 15 x 1 + 5
We consider the new divisor 15 and the new remainder 5, and apply the division lemma to get
15 = 5 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 35 and 930 is 5
Notice that 5 = HCF(15,5) = HCF(20,15) = HCF(35,20) = HCF(930,35) .
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 210, 665, 930?
Answer: HCF of 210, 665, 930 is 5 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 210, 665, 930 using Euclid's Algorithm?
Answer: For arbitrary numbers 210, 665, 930 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.