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 642, 473, 934 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 642, 473, 934 is 1 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 642, 473, 934 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 642, 473, 934 is 1.
HCF(642, 473, 934) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 642, 473, 934 is 1.
Step 1: Since 642 > 473, we apply the division lemma to 642 and 473, to get
642 = 473 x 1 + 169
Step 2: Since the reminder 473 ≠ 0, we apply division lemma to 169 and 473, to get
473 = 169 x 2 + 135
Step 3: We consider the new divisor 169 and the new remainder 135, and apply the division lemma to get
169 = 135 x 1 + 34
We consider the new divisor 135 and the new remainder 34,and apply the division lemma to get
135 = 34 x 3 + 33
We consider the new divisor 34 and the new remainder 33,and apply the division lemma to get
34 = 33 x 1 + 1
We consider the new divisor 33 and the new remainder 1,and apply the division lemma to get
33 = 1 x 33 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 642 and 473 is 1
Notice that 1 = HCF(33,1) = HCF(34,33) = HCF(135,34) = HCF(169,135) = HCF(473,169) = HCF(642,473) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 934 > 1, we apply the division lemma to 934 and 1, to get
934 = 1 x 934 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 934 is 1
Notice that 1 = HCF(934,1) .
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 642, 473, 934?
Answer: HCF of 642, 473, 934 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 642, 473, 934 using Euclid's Algorithm?
Answer: For arbitrary numbers 642, 473, 934 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.