Highest Common Factor of 115, 209, 390 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 115, 209, 390 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 115, 209, 390 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 115, 209, 390 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 115, 209, 390 is 1.
HCF(115, 209, 390) = 1
HCF of 115, 209, 390 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 115, 209, 390 is 1.
Highest Common Factor of 115,209,390 is 1
Step 1: Since 209 > 115, we apply the division lemma to 209 and 115, to get
209 = 115 x 1 + 94
Step 2: Since the reminder 115 ≠ 0, we apply division lemma to 94 and 115, to get
115 = 94 x 1 + 21
Step 3: We consider the new divisor 94 and the new remainder 21, and apply the division lemma to get
94 = 21 x 4 + 10
We consider the new divisor 21 and the new remainder 10,and apply the division lemma to get
21 = 10 x 2 + 1
We consider the new divisor 10 and the new remainder 1,and apply the division lemma to get
10 = 1 x 10 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 115 and 209 is 1
Notice that 1 = HCF(10,1) = HCF(21,10) = HCF(94,21) = HCF(115,94) = HCF(209,115) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 390 > 1, we apply the division lemma to 390 and 1, to get
390 = 1 x 390 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 390 is 1
Notice that 1 = HCF(390,1) .
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Frequently Asked Questions on HCF of 115, 209, 390 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 115, 209, 390?
Answer: HCF of 115, 209, 390 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 115, 209, 390 using Euclid's Algorithm?
Answer: For arbitrary numbers 115, 209, 390 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.