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 844, 542, 820 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 844, 542, 820 is 2 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 844, 542, 820 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 844, 542, 820 is 2.
HCF(844, 542, 820) = 2
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 844, 542, 820 is 2.
Step 1: Since 844 > 542, we apply the division lemma to 844 and 542, to get
844 = 542 x 1 + 302
Step 2: Since the reminder 542 ≠ 0, we apply division lemma to 302 and 542, to get
542 = 302 x 1 + 240
Step 3: We consider the new divisor 302 and the new remainder 240, and apply the division lemma to get
302 = 240 x 1 + 62
We consider the new divisor 240 and the new remainder 62,and apply the division lemma to get
240 = 62 x 3 + 54
We consider the new divisor 62 and the new remainder 54,and apply the division lemma to get
62 = 54 x 1 + 8
We consider the new divisor 54 and the new remainder 8,and apply the division lemma to get
54 = 8 x 6 + 6
We consider the new divisor 8 and the new remainder 6,and apply the division lemma to get
8 = 6 x 1 + 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 844 and 542 is 2
Notice that 2 = HCF(6,2) = HCF(8,6) = HCF(54,8) = HCF(62,54) = HCF(240,62) = HCF(302,240) = HCF(542,302) = HCF(844,542) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 820 > 2, we apply the division lemma to 820 and 2, to get
820 = 2 x 410 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 2 and 820 is 2
Notice that 2 = HCF(820,2) .
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 844, 542, 820?
Answer: HCF of 844, 542, 820 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 844, 542, 820 using Euclid's Algorithm?
Answer: For arbitrary numbers 844, 542, 820 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.