Highest Common Factor of 131, 421, 451, 990 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 131, 421, 451, 990 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 131, 421, 451, 990 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 131, 421, 451, 990 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 131, 421, 451, 990 is 1.
HCF(131, 421, 451, 990) = 1
HCF of 131, 421, 451, 990 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 131, 421, 451, 990 is 1.
Highest Common Factor of 131,421,451,990 is 1
Step 1: Since 421 > 131, we apply the division lemma to 421 and 131, to get
421 = 131 x 3 + 28
Step 2: Since the reminder 131 ≠ 0, we apply division lemma to 28 and 131, to get
131 = 28 x 4 + 19
Step 3: We consider the new divisor 28 and the new remainder 19, and apply the division lemma to get
28 = 19 x 1 + 9
We consider the new divisor 19 and the new remainder 9,and apply the division lemma to get
19 = 9 x 2 + 1
We consider the new divisor 9 and the new remainder 1,and apply the division lemma to get
9 = 1 x 9 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 131 and 421 is 1
Notice that 1 = HCF(9,1) = HCF(19,9) = HCF(28,19) = HCF(131,28) = HCF(421,131) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 451 > 1, we apply the division lemma to 451 and 1, to get
451 = 1 x 451 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 451 is 1
Notice that 1 = HCF(451,1) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 990 > 1, we apply the division lemma to 990 and 1, to get
990 = 1 x 990 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 990 is 1
Notice that 1 = HCF(990,1) .
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Frequently Asked Questions on HCF of 131, 421, 451, 990 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 131, 421, 451, 990?
Answer: HCF of 131, 421, 451, 990 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 131, 421, 451, 990 using Euclid's Algorithm?
Answer: For arbitrary numbers 131, 421, 451, 990 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.