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 389, 697, 225 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 389, 697, 225 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 389, 697, 225 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 389, 697, 225 is 1.
HCF(389, 697, 225) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 389, 697, 225 is 1.
Step 1: Since 697 > 389, we apply the division lemma to 697 and 389, to get
697 = 389 x 1 + 308
Step 2: Since the reminder 389 ≠ 0, we apply division lemma to 308 and 389, to get
389 = 308 x 1 + 81
Step 3: We consider the new divisor 308 and the new remainder 81, and apply the division lemma to get
308 = 81 x 3 + 65
We consider the new divisor 81 and the new remainder 65,and apply the division lemma to get
81 = 65 x 1 + 16
We consider the new divisor 65 and the new remainder 16,and apply the division lemma to get
65 = 16 x 4 + 1
We consider the new divisor 16 and the new remainder 1,and apply the division lemma to get
16 = 1 x 16 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 389 and 697 is 1
Notice that 1 = HCF(16,1) = HCF(65,16) = HCF(81,65) = HCF(308,81) = HCF(389,308) = HCF(697,389) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 225 > 1, we apply the division lemma to 225 and 1, to get
225 = 1 x 225 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 225 is 1
Notice that 1 = HCF(225,1) .
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 389, 697, 225?
Answer: HCF of 389, 697, 225 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 389, 697, 225 using Euclid's Algorithm?
Answer: For arbitrary numbers 389, 697, 225 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.