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 909, 720, 608 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 909, 720, 608 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 909, 720, 608 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 909, 720, 608 is 1.
HCF(909, 720, 608) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 909, 720, 608 is 1.
Step 1: Since 909 > 720, we apply the division lemma to 909 and 720, to get
909 = 720 x 1 + 189
Step 2: Since the reminder 720 ≠ 0, we apply division lemma to 189 and 720, to get
720 = 189 x 3 + 153
Step 3: We consider the new divisor 189 and the new remainder 153, and apply the division lemma to get
189 = 153 x 1 + 36
We consider the new divisor 153 and the new remainder 36,and apply the division lemma to get
153 = 36 x 4 + 9
We consider the new divisor 36 and the new remainder 9,and apply the division lemma to get
36 = 9 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 9, the HCF of 909 and 720 is 9
Notice that 9 = HCF(36,9) = HCF(153,36) = HCF(189,153) = HCF(720,189) = HCF(909,720) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 608 > 9, we apply the division lemma to 608 and 9, to get
608 = 9 x 67 + 5
Step 2: Since the reminder 9 ≠ 0, we apply division lemma to 5 and 9, to get
9 = 5 x 1 + 4
Step 3: We consider the new divisor 5 and the new remainder 4, and apply the division lemma to get
5 = 4 x 1 + 1
We consider the new divisor 4 and the new remainder 1, and apply the division lemma to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 9 and 608 is 1
Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(9,5) = HCF(608,9) .
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 909, 720, 608?
Answer: HCF of 909, 720, 608 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 909, 720, 608 using Euclid's Algorithm?
Answer: For arbitrary numbers 909, 720, 608 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.