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 393, 542, 520 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 393, 542, 520 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 393, 542, 520 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 393, 542, 520 is 1.
HCF(393, 542, 520) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 393, 542, 520 is 1.
Step 1: Since 542 > 393, we apply the division lemma to 542 and 393, to get
542 = 393 x 1 + 149
Step 2: Since the reminder 393 ≠ 0, we apply division lemma to 149 and 393, to get
393 = 149 x 2 + 95
Step 3: We consider the new divisor 149 and the new remainder 95, and apply the division lemma to get
149 = 95 x 1 + 54
We consider the new divisor 95 and the new remainder 54,and apply the division lemma to get
95 = 54 x 1 + 41
We consider the new divisor 54 and the new remainder 41,and apply the division lemma to get
54 = 41 x 1 + 13
We consider the new divisor 41 and the new remainder 13,and apply the division lemma to get
41 = 13 x 3 + 2
We consider the new divisor 13 and the new remainder 2,and apply the division lemma to get
13 = 2 x 6 + 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 393 and 542 is 1
Notice that 1 = HCF(2,1) = HCF(13,2) = HCF(41,13) = HCF(54,41) = HCF(95,54) = HCF(149,95) = HCF(393,149) = HCF(542,393) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 520 > 1, we apply the division lemma to 520 and 1, to get
520 = 1 x 520 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 520 is 1
Notice that 1 = HCF(520,1) .
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 393, 542, 520?
Answer: HCF of 393, 542, 520 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 393, 542, 520 using Euclid's Algorithm?
Answer: For arbitrary numbers 393, 542, 520 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.