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 225, 860, 918 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 225, 860, 918 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 225, 860, 918 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 225, 860, 918 is 1.
HCF(225, 860, 918) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 225, 860, 918 is 1.
Step 1: Since 860 > 225, we apply the division lemma to 860 and 225, to get
860 = 225 x 3 + 185
Step 2: Since the reminder 225 ≠ 0, we apply division lemma to 185 and 225, to get
225 = 185 x 1 + 40
Step 3: We consider the new divisor 185 and the new remainder 40, and apply the division lemma to get
185 = 40 x 4 + 25
We consider the new divisor 40 and the new remainder 25,and apply the division lemma to get
40 = 25 x 1 + 15
We consider the new divisor 25 and the new remainder 15,and apply the division lemma to get
25 = 15 x 1 + 10
We consider the new divisor 15 and the new remainder 10,and apply the division lemma to get
15 = 10 x 1 + 5
We consider the new divisor 10 and the new remainder 5,and apply the division lemma to get
10 = 5 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 225 and 860 is 5
Notice that 5 = HCF(10,5) = HCF(15,10) = HCF(25,15) = HCF(40,25) = HCF(185,40) = HCF(225,185) = HCF(860,225) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 918 > 5, we apply the division lemma to 918 and 5, to get
918 = 5 x 183 + 3
Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 3 and 5, to get
5 = 3 x 1 + 2
Step 3: We consider the new divisor 3 and the new remainder 2, and apply the division lemma to get
3 = 2 x 1 + 1
We consider the new divisor 2 and the new remainder 1, and apply the division lemma 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 5 and 918 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(918,5) .
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 225, 860, 918?
Answer: HCF of 225, 860, 918 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 225, 860, 918 using Euclid's Algorithm?
Answer: For arbitrary numbers 225, 860, 918 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.