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 693, 665 i.e. 7 the largest integer that leaves a remainder zero for all numbers.
HCF of 693, 665 is 7 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 693, 665 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 693, 665 is 7.
HCF(693, 665) = 7
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 693, 665 is 7.
Step 1: Since 693 > 665, we apply the division lemma to 693 and 665, to get
693 = 665 x 1 + 28
Step 2: Since the reminder 665 ≠ 0, we apply division lemma to 28 and 665, to get
665 = 28 x 23 + 21
Step 3: We consider the new divisor 28 and the new remainder 21, and apply the division lemma to get
28 = 21 x 1 + 7
We consider the new divisor 21 and the new remainder 7, and apply the division lemma to get
21 = 7 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 693 and 665 is 7
Notice that 7 = HCF(21,7) = HCF(28,21) = HCF(665,28) = HCF(693,665) .
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 693, 665?
Answer: HCF of 693, 665 is 7 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 693, 665 using Euclid's Algorithm?
Answer: For arbitrary numbers 693, 665 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.