Highest Common Factor of 129, 250, 472, 221 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 129, 250, 472, 221 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 129, 250, 472, 221 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 129, 250, 472, 221 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 129, 250, 472, 221 is 1.
HCF(129, 250, 472, 221) = 1
HCF of 129, 250, 472, 221 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 129, 250, 472, 221 is 1.
Highest Common Factor of 129,250,472,221 is 1
Step 1: Since 250 > 129, we apply the division lemma to 250 and 129, to get
250 = 129 x 1 + 121
Step 2: Since the reminder 129 ≠ 0, we apply division lemma to 121 and 129, to get
129 = 121 x 1 + 8
Step 3: We consider the new divisor 121 and the new remainder 8, and apply the division lemma to get
121 = 8 x 15 + 1
We consider the new divisor 8 and the new remainder 1, and apply the division lemma to get
8 = 1 x 8 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 129 and 250 is 1
Notice that 1 = HCF(8,1) = HCF(121,8) = HCF(129,121) = HCF(250,129) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 472 > 1, we apply the division lemma to 472 and 1, to get
472 = 1 x 472 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 472 is 1
Notice that 1 = HCF(472,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 221 > 1, we apply the division lemma to 221 and 1, to get
221 = 1 x 221 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 221 is 1
Notice that 1 = HCF(221,1) .
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Frequently Asked Questions on HCF of 129, 250, 472, 221 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 129, 250, 472, 221?
Answer: HCF of 129, 250, 472, 221 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 129, 250, 472, 221 using Euclid's Algorithm?
Answer: For arbitrary numbers 129, 250, 472, 221 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.