Highest Common Factor of 417, 990, 931 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 417, 990, 931 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 417, 990, 931 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 417, 990, 931 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 417, 990, 931 is 1.
HCF(417, 990, 931) = 1
HCF of 417, 990, 931 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 417, 990, 931 is 1.
Highest Common Factor of 417,990,931 is 1
Step 1: Since 990 > 417, we apply the division lemma to 990 and 417, to get
990 = 417 x 2 + 156
Step 2: Since the reminder 417 ≠ 0, we apply division lemma to 156 and 417, to get
417 = 156 x 2 + 105
Step 3: We consider the new divisor 156 and the new remainder 105, and apply the division lemma to get
156 = 105 x 1 + 51
We consider the new divisor 105 and the new remainder 51,and apply the division lemma to get
105 = 51 x 2 + 3
We consider the new divisor 51 and the new remainder 3,and apply the division lemma to get
51 = 3 x 17 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 417 and 990 is 3
Notice that 3 = HCF(51,3) = HCF(105,51) = HCF(156,105) = HCF(417,156) = HCF(990,417) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 931 > 3, we apply the division lemma to 931 and 3, to get
931 = 3 x 310 + 1
Step 2: Since the reminder 3 ≠ 0, we apply division lemma to 1 and 3, to get
3 = 1 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 3 and 931 is 1
Notice that 1 = HCF(3,1) = HCF(931,3) .
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Frequently Asked Questions on HCF of 417, 990, 931 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 417, 990, 931?
Answer: HCF of 417, 990, 931 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 417, 990, 931 using Euclid's Algorithm?
Answer: For arbitrary numbers 417, 990, 931 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.