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 518, 400, 947 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 518, 400, 947 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 518, 400, 947 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 518, 400, 947 is 1.
HCF(518, 400, 947) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 518, 400, 947 is 1.
Step 1: Since 518 > 400, we apply the division lemma to 518 and 400, to get
518 = 400 x 1 + 118
Step 2: Since the reminder 400 ≠ 0, we apply division lemma to 118 and 400, to get
400 = 118 x 3 + 46
Step 3: We consider the new divisor 118 and the new remainder 46, and apply the division lemma to get
118 = 46 x 2 + 26
We consider the new divisor 46 and the new remainder 26,and apply the division lemma to get
46 = 26 x 1 + 20
We consider the new divisor 26 and the new remainder 20,and apply the division lemma to get
26 = 20 x 1 + 6
We consider the new divisor 20 and the new remainder 6,and apply the division lemma to get
20 = 6 x 3 + 2
We consider the new divisor 6 and the new remainder 2,and apply the division lemma to get
6 = 2 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 518 and 400 is 2
Notice that 2 = HCF(6,2) = HCF(20,6) = HCF(26,20) = HCF(46,26) = HCF(118,46) = HCF(400,118) = HCF(518,400) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 947 > 2, we apply the division lemma to 947 and 2, to get
947 = 2 x 473 + 1
Step 2: Since the reminder 2 ≠ 0, we apply division lemma to 1 and 2, 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 2 and 947 is 1
Notice that 1 = HCF(2,1) = HCF(947,2) .
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 518, 400, 947?
Answer: HCF of 518, 400, 947 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 518, 400, 947 using Euclid's Algorithm?
Answer: For arbitrary numbers 518, 400, 947 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.