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 303, 470, 79 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 303, 470, 79 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 303, 470, 79 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 303, 470, 79 is 1.
HCF(303, 470, 79) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 303, 470, 79 is 1.
Step 1: Since 470 > 303, we apply the division lemma to 470 and 303, to get
470 = 303 x 1 + 167
Step 2: Since the reminder 303 ≠ 0, we apply division lemma to 167 and 303, to get
303 = 167 x 1 + 136
Step 3: We consider the new divisor 167 and the new remainder 136, and apply the division lemma to get
167 = 136 x 1 + 31
We consider the new divisor 136 and the new remainder 31,and apply the division lemma to get
136 = 31 x 4 + 12
We consider the new divisor 31 and the new remainder 12,and apply the division lemma to get
31 = 12 x 2 + 7
We consider the new divisor 12 and the new remainder 7,and apply the division lemma to get
12 = 7 x 1 + 5
We consider the new divisor 7 and the new remainder 5,and apply the division lemma to get
7 = 5 x 1 + 2
We consider the new divisor 5 and the new remainder 2,and apply the division lemma to get
5 = 2 x 2 + 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 303 and 470 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(7,5) = HCF(12,7) = HCF(31,12) = HCF(136,31) = HCF(167,136) = HCF(303,167) = HCF(470,303) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 79 > 1, we apply the division lemma to 79 and 1, to get
79 = 1 x 79 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 79 is 1
Notice that 1 = HCF(79,1) .
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 303, 470, 79?
Answer: HCF of 303, 470, 79 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 303, 470, 79 using Euclid's Algorithm?
Answer: For arbitrary numbers 303, 470, 79 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.