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 395, 494, 691 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 395, 494, 691 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 395, 494, 691 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 395, 494, 691 is 1.
HCF(395, 494, 691) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 395, 494, 691 is 1.
Step 1: Since 494 > 395, we apply the division lemma to 494 and 395, to get
494 = 395 x 1 + 99
Step 2: Since the reminder 395 ≠ 0, we apply division lemma to 99 and 395, to get
395 = 99 x 3 + 98
Step 3: We consider the new divisor 99 and the new remainder 98, and apply the division lemma to get
99 = 98 x 1 + 1
We consider the new divisor 98 and the new remainder 1, and apply the division lemma to get
98 = 1 x 98 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 395 and 494 is 1
Notice that 1 = HCF(98,1) = HCF(99,98) = HCF(395,99) = HCF(494,395) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 691 > 1, we apply the division lemma to 691 and 1, to get
691 = 1 x 691 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 691 is 1
Notice that 1 = HCF(691,1) .
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 395, 494, 691?
Answer: HCF of 395, 494, 691 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 395, 494, 691 using Euclid's Algorithm?
Answer: For arbitrary numbers 395, 494, 691 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.