Highest Common Factor of 99, 25, 56, 243 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 99, 25, 56, 243 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 99, 25, 56, 243 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 99, 25, 56, 243 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 99, 25, 56, 243 is 1.
HCF(99, 25, 56, 243) = 1
HCF of 99, 25, 56, 243 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 99, 25, 56, 243 is 1.
Highest Common Factor of 99,25,56,243 is 1
Step 1: Since 99 > 25, we apply the division lemma to 99 and 25, to get
99 = 25 x 3 + 24
Step 2: Since the reminder 25 ≠ 0, we apply division lemma to 24 and 25, to get
25 = 24 x 1 + 1
Step 3: We consider the new divisor 24 and the new remainder 1, and apply the division lemma to get
24 = 1 x 24 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 99 and 25 is 1
Notice that 1 = HCF(24,1) = HCF(25,24) = HCF(99,25) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 56 > 1, we apply the division lemma to 56 and 1, to get
56 = 1 x 56 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 56 is 1
Notice that 1 = HCF(56,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 243 > 1, we apply the division lemma to 243 and 1, to get
243 = 1 x 243 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 243 is 1
Notice that 1 = HCF(243,1) .
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Frequently Asked Questions on HCF of 99, 25, 56, 243 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 99, 25, 56, 243?
Answer: HCF of 99, 25, 56, 243 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 99, 25, 56, 243 using Euclid's Algorithm?
Answer: For arbitrary numbers 99, 25, 56, 243 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.