Highest Common Factor of 820, 740, 942 using Euclid's algorithm
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 820, 740, 942 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 820, 740, 942 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 820, 740, 942 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 820, 740, 942 is 2.
HCF(820, 740, 942) = 2
HCF of 820, 740, 942 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 820, 740, 942 is 2.
Highest Common Factor of 820,740,942 is 2
Step 1: Since 820 > 740, we apply the division lemma to 820 and 740, to get
820 = 740 x 1 + 80
Step 2: Since the reminder 740 ≠ 0, we apply division lemma to 80 and 740, to get
740 = 80 x 9 + 20
Step 3: We consider the new divisor 80 and the new remainder 20, and apply the division lemma to get
80 = 20 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 20, the HCF of 820 and 740 is 20
Notice that 20 = HCF(80,20) = HCF(740,80) = HCF(820,740) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 942 > 20, we apply the division lemma to 942 and 20, to get
942 = 20 x 47 + 2
Step 2: Since the reminder 20 ≠ 0, we apply division lemma to 2 and 20, to get
20 = 2 x 10 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 20 and 942 is 2
Notice that 2 = HCF(20,2) = HCF(942,20) .
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Frequently Asked Questions on HCF of 820, 740, 942 using Euclid's Algorithm
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 820, 740, 942?
Answer: HCF of 820, 740, 942 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 820, 740, 942 using Euclid's Algorithm?
Answer: For arbitrary numbers 820, 740, 942 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.