Highest Common Factor of 149, 570, 230, 638 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 149, 570, 230, 638 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 149, 570, 230, 638 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 149, 570, 230, 638 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 149, 570, 230, 638 is 1.
HCF(149, 570, 230, 638) = 1
HCF of 149, 570, 230, 638 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 149, 570, 230, 638 is 1.
Highest Common Factor of 149,570,230,638 is 1
Step 1: Since 570 > 149, we apply the division lemma to 570 and 149, to get
570 = 149 x 3 + 123
Step 2: Since the reminder 149 ≠ 0, we apply division lemma to 123 and 149, to get
149 = 123 x 1 + 26
Step 3: We consider the new divisor 123 and the new remainder 26, and apply the division lemma to get
123 = 26 x 4 + 19
We consider the new divisor 26 and the new remainder 19,and apply the division lemma to get
26 = 19 x 1 + 7
We consider the new divisor 19 and the new remainder 7,and apply the division lemma to get
19 = 7 x 2 + 5
We consider the new divisor 7 and the new remainder 5,and apply the division lemma to get
7 = 5 x 1 + 2
We consider the new divisor 5 and the new remainder 2,and apply the division lemma to get
5 = 2 x 2 + 1
We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 149 and 570 is 1
Notice that 1 = HCF(2,1) = HCF(5,2) = HCF(7,5) = HCF(19,7) = HCF(26,19) = HCF(123,26) = HCF(149,123) = HCF(570,149) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 230 > 1, we apply the division lemma to 230 and 1, to get
230 = 1 x 230 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 230 is 1
Notice that 1 = HCF(230,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 638 > 1, we apply the division lemma to 638 and 1, to get
638 = 1 x 638 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 638 is 1
Notice that 1 = HCF(638,1) .
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Frequently Asked Questions on HCF of 149, 570, 230, 638 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 149, 570, 230, 638?
Answer: HCF of 149, 570, 230, 638 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 149, 570, 230, 638 using Euclid's Algorithm?
Answer: For arbitrary numbers 149, 570, 230, 638 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.