Highest Common Factor of 18, 304, 128, 123 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 18, 304, 128, 123 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 18, 304, 128, 123 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 18, 304, 128, 123 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 18, 304, 128, 123 is 1.
HCF(18, 304, 128, 123) = 1
HCF of 18, 304, 128, 123 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 18, 304, 128, 123 is 1.
Highest Common Factor of 18,304,128,123 is 1
Step 1: Since 304 > 18, we apply the division lemma to 304 and 18, to get
304 = 18 x 16 + 16
Step 2: Since the reminder 18 ≠ 0, we apply division lemma to 16 and 18, to get
18 = 16 x 1 + 2
Step 3: We consider the new divisor 16 and the new remainder 2, and apply the division lemma to get
16 = 2 x 8 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 18 and 304 is 2
Notice that 2 = HCF(16,2) = HCF(18,16) = HCF(304,18) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 128 > 2, we apply the division lemma to 128 and 2, to get
128 = 2 x 64 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 2 and 128 is 2
Notice that 2 = HCF(128,2) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 123 > 2, we apply the division lemma to 123 and 2, to get
123 = 2 x 61 + 1
Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 2 and 123 is 1
Notice that 1 = HCF(2,1) = HCF(123,2) .
HCF using Euclid's Algorithm Calculation Examples
Here are some samples of HCF using Euclid's Algorithm calculations.
Frequently Asked Questions on HCF of 18, 304, 128, 123 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 18, 304, 128, 123?
Answer: HCF of 18, 304, 128, 123 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 18, 304, 128, 123 using Euclid's Algorithm?
Answer: For arbitrary numbers 18, 304, 128, 123 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.