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 801, 306, 322 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 801, 306, 322 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 801, 306, 322 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 801, 306, 322 is 1.
HCF(801, 306, 322) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 801, 306, 322 is 1.
Step 1: Since 801 > 306, we apply the division lemma to 801 and 306, to get
801 = 306 x 2 + 189
Step 2: Since the reminder 306 ≠ 0, we apply division lemma to 189 and 306, to get
306 = 189 x 1 + 117
Step 3: We consider the new divisor 189 and the new remainder 117, and apply the division lemma to get
189 = 117 x 1 + 72
We consider the new divisor 117 and the new remainder 72,and apply the division lemma to get
117 = 72 x 1 + 45
We consider the new divisor 72 and the new remainder 45,and apply the division lemma to get
72 = 45 x 1 + 27
We consider the new divisor 45 and the new remainder 27,and apply the division lemma to get
45 = 27 x 1 + 18
We consider the new divisor 27 and the new remainder 18,and apply the division lemma to get
27 = 18 x 1 + 9
We consider the new divisor 18 and the new remainder 9,and apply the division lemma to get
18 = 9 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 9, the HCF of 801 and 306 is 9
Notice that 9 = HCF(18,9) = HCF(27,18) = HCF(45,27) = HCF(72,45) = HCF(117,72) = HCF(189,117) = HCF(306,189) = HCF(801,306) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 322 > 9, we apply the division lemma to 322 and 9, to get
322 = 9 x 35 + 7
Step 2: Since the reminder 9 ≠ 0, we apply division lemma to 7 and 9, to get
9 = 7 x 1 + 2
Step 3: We consider the new divisor 7 and the new remainder 2, and apply the division lemma to get
7 = 2 x 3 + 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 9 and 322 is 1
Notice that 1 = HCF(2,1) = HCF(7,2) = HCF(9,7) = HCF(322,9) .
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 801, 306, 322?
Answer: HCF of 801, 306, 322 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 801, 306, 322 using Euclid's Algorithm?
Answer: For arbitrary numbers 801, 306, 322 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.