Highest Common Factor of 73, 55, 420, 977 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 73, 55, 420, 977 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 73, 55, 420, 977 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 73, 55, 420, 977 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 73, 55, 420, 977 is 1.
HCF(73, 55, 420, 977) = 1
HCF of 73, 55, 420, 977 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 73, 55, 420, 977 is 1.
Highest Common Factor of 73,55,420,977 is 1
Step 1: Since 73 > 55, we apply the division lemma to 73 and 55, to get
73 = 55 x 1 + 18
Step 2: Since the reminder 55 ≠ 0, we apply division lemma to 18 and 55, to get
55 = 18 x 3 + 1
Step 3: We consider the new divisor 18 and the new remainder 1, and apply the division lemma to get
18 = 1 x 18 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 73 and 55 is 1
Notice that 1 = HCF(18,1) = HCF(55,18) = HCF(73,55) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 420 > 1, we apply the division lemma to 420 and 1, to get
420 = 1 x 420 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 420 is 1
Notice that 1 = HCF(420,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 977 > 1, we apply the division lemma to 977 and 1, to get
977 = 1 x 977 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 977 is 1
Notice that 1 = HCF(977,1) .
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Frequently Asked Questions on HCF of 73, 55, 420, 977 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 73, 55, 420, 977?
Answer: HCF of 73, 55, 420, 977 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 73, 55, 420, 977 using Euclid's Algorithm?
Answer: For arbitrary numbers 73, 55, 420, 977 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.