Highest Common Factor of 660, 555, 224, 129 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 660, 555, 224, 129 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 660, 555, 224, 129 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 660, 555, 224, 129 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 660, 555, 224, 129 is 1.
HCF(660, 555, 224, 129) = 1
HCF of 660, 555, 224, 129 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 660, 555, 224, 129 is 1.
Highest Common Factor of 660,555,224,129 is 1
Step 1: Since 660 > 555, we apply the division lemma to 660 and 555, to get
660 = 555 x 1 + 105
Step 2: Since the reminder 555 ≠ 0, we apply division lemma to 105 and 555, to get
555 = 105 x 5 + 30
Step 3: We consider the new divisor 105 and the new remainder 30, and apply the division lemma to get
105 = 30 x 3 + 15
We consider the new divisor 30 and the new remainder 15, and apply the division lemma to get
30 = 15 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 15, the HCF of 660 and 555 is 15
Notice that 15 = HCF(30,15) = HCF(105,30) = HCF(555,105) = HCF(660,555) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 224 > 15, we apply the division lemma to 224 and 15, to get
224 = 15 x 14 + 14
Step 2: Since the reminder 15 ≠ 0, we apply division lemma to 14 and 15, to get
15 = 14 x 1 + 1
Step 3: We consider the new divisor 14 and the new remainder 1, and apply the division lemma to get
14 = 1 x 14 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 15 and 224 is 1
Notice that 1 = HCF(14,1) = HCF(15,14) = HCF(224,15) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 129 > 1, we apply the division lemma to 129 and 1, to get
129 = 1 x 129 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 129 is 1
Notice that 1 = HCF(129,1) .
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Frequently Asked Questions on HCF of 660, 555, 224, 129 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 660, 555, 224, 129?
Answer: HCF of 660, 555, 224, 129 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 660, 555, 224, 129 using Euclid's Algorithm?
Answer: For arbitrary numbers 660, 555, 224, 129 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.