Highest Common Factor of 420, 204, 503 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 420, 204, 503 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 420, 204, 503 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 420, 204, 503 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 420, 204, 503 is 1.
HCF(420, 204, 503) = 1
HCF of 420, 204, 503 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 420, 204, 503 is 1.
Highest Common Factor of 420,204,503 is 1
Step 1: Since 420 > 204, we apply the division lemma to 420 and 204, to get
420 = 204 x 2 + 12
Step 2: Since the reminder 204 ≠ 0, we apply division lemma to 12 and 204, to get
204 = 12 x 17 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 12, the HCF of 420 and 204 is 12
Notice that 12 = HCF(204,12) = HCF(420,204) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 503 > 12, we apply the division lemma to 503 and 12, to get
503 = 12 x 41 + 11
Step 2: Since the reminder 12 ≠ 0, we apply division lemma to 11 and 12, to get
12 = 11 x 1 + 1
Step 3: We consider the new divisor 11 and the new remainder 1, and apply the division lemma to get
11 = 1 x 11 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 12 and 503 is 1
Notice that 1 = HCF(11,1) = HCF(12,11) = HCF(503,12) .
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Frequently Asked Questions on HCF of 420, 204, 503 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 420, 204, 503?
Answer: HCF of 420, 204, 503 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 420, 204, 503 using Euclid's Algorithm?
Answer: For arbitrary numbers 420, 204, 503 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.