Highest Common Factor of 621, 787 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 621, 787 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 621, 787 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 621, 787 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 621, 787 is 1.
HCF(621, 787) = 1
HCF of 621, 787 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 621, 787 is 1.
Highest Common Factor of 621,787 is 1
Step 1: Since 787 > 621, we apply the division lemma to 787 and 621, to get
787 = 621 x 1 + 166
Step 2: Since the reminder 621 ≠ 0, we apply division lemma to 166 and 621, to get
621 = 166 x 3 + 123
Step 3: We consider the new divisor 166 and the new remainder 123, and apply the division lemma to get
166 = 123 x 1 + 43
We consider the new divisor 123 and the new remainder 43,and apply the division lemma to get
123 = 43 x 2 + 37
We consider the new divisor 43 and the new remainder 37,and apply the division lemma to get
43 = 37 x 1 + 6
We consider the new divisor 37 and the new remainder 6,and apply the division lemma to get
37 = 6 x 6 + 1
We consider the new divisor 6 and the new remainder 1,and apply the division lemma to get
6 = 1 x 6 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 621 and 787 is 1
Notice that 1 = HCF(6,1) = HCF(37,6) = HCF(43,37) = HCF(123,43) = HCF(166,123) = HCF(621,166) = HCF(787,621) .
HCF using Euclid's Algorithm Calculation Examples
Here are some samples of HCF using Euclid's Algorithm calculations.
Frequently Asked Questions on HCF of 621, 787 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 621, 787?
Answer: HCF of 621, 787 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 621, 787 using Euclid's Algorithm?
Answer: For arbitrary numbers 621, 787 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.