Highest Common Factor of 491, 621 using Euclid's algorithm
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 491, 621 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 491, 621 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 491, 621 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 491, 621 is 1.
HCF(491, 621) = 1
HCF of 491, 621 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 491, 621 is 1.
Highest Common Factor of 491,621 is 1
Step 1: Since 621 > 491, we apply the division lemma to 621 and 491, to get
621 = 491 x 1 + 130
Step 2: Since the reminder 491 ≠ 0, we apply division lemma to 130 and 491, to get
491 = 130 x 3 + 101
Step 3: We consider the new divisor 130 and the new remainder 101, and apply the division lemma to get
130 = 101 x 1 + 29
We consider the new divisor 101 and the new remainder 29,and apply the division lemma to get
101 = 29 x 3 + 14
We consider the new divisor 29 and the new remainder 14,and apply the division lemma to get
29 = 14 x 2 + 1
We consider the new divisor 14 and the new remainder 1,and apply the division lemma to get
14 = 1 x 14 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 491 and 621 is 1
Notice that 1 = HCF(14,1) = HCF(29,14) = HCF(101,29) = HCF(130,101) = HCF(491,130) = HCF(621,491) .
HCF using Euclid's Algorithm Calculation Examples
Here are some samples of HCF using Euclid's Algorithm calculations.
Frequently Asked Questions on HCF of 491, 621 using Euclid's Algorithm
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 491, 621?
Answer: HCF of 491, 621 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 491, 621 using Euclid's Algorithm?
Answer: For arbitrary numbers 491, 621 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.