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 685, 580, 40 i.e. 5 the largest integer that leaves a remainder zero for all numbers.
HCF of 685, 580, 40 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 685, 580, 40 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 685, 580, 40 is 5.
HCF(685, 580, 40) = 5
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 685, 580, 40 is 5.
Step 1: Since 685 > 580, we apply the division lemma to 685 and 580, to get
685 = 580 x 1 + 105
Step 2: Since the reminder 580 ≠ 0, we apply division lemma to 105 and 580, to get
580 = 105 x 5 + 55
Step 3: We consider the new divisor 105 and the new remainder 55, and apply the division lemma to get
105 = 55 x 1 + 50
We consider the new divisor 55 and the new remainder 50,and apply the division lemma to get
55 = 50 x 1 + 5
We consider the new divisor 50 and the new remainder 5,and apply the division lemma to get
50 = 5 x 10 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 685 and 580 is 5
Notice that 5 = HCF(50,5) = HCF(55,50) = HCF(105,55) = HCF(580,105) = HCF(685,580) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 40 > 5, we apply the division lemma to 40 and 5, to get
40 = 5 x 8 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 5 and 40 is 5
Notice that 5 = HCF(40,5) .
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 685, 580, 40?
Answer: HCF of 685, 580, 40 is 5 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 685, 580, 40 using Euclid's Algorithm?
Answer: For arbitrary numbers 685, 580, 40 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.