Highest Common Factor of 418, 990, 249 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 418, 990, 249 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 418, 990, 249 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 418, 990, 249 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 418, 990, 249 is 1.
HCF(418, 990, 249) = 1
HCF of 418, 990, 249 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 418, 990, 249 is 1.
Highest Common Factor of 418,990,249 is 1
Step 1: Since 990 > 418, we apply the division lemma to 990 and 418, to get
990 = 418 x 2 + 154
Step 2: Since the reminder 418 ≠ 0, we apply division lemma to 154 and 418, to get
418 = 154 x 2 + 110
Step 3: We consider the new divisor 154 and the new remainder 110, and apply the division lemma to get
154 = 110 x 1 + 44
We consider the new divisor 110 and the new remainder 44,and apply the division lemma to get
110 = 44 x 2 + 22
We consider the new divisor 44 and the new remainder 22,and apply the division lemma to get
44 = 22 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 22, the HCF of 418 and 990 is 22
Notice that 22 = HCF(44,22) = HCF(110,44) = HCF(154,110) = HCF(418,154) = HCF(990,418) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 249 > 22, we apply the division lemma to 249 and 22, to get
249 = 22 x 11 + 7
Step 2: Since the reminder 22 ≠ 0, we apply division lemma to 7 and 22, to get
22 = 7 x 3 + 1
Step 3: We consider the new divisor 7 and the new remainder 1, and apply the division lemma to get
7 = 1 x 7 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 22 and 249 is 1
Notice that 1 = HCF(7,1) = HCF(22,7) = HCF(249,22) .
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Frequently Asked Questions on HCF of 418, 990, 249 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 418, 990, 249?
Answer: HCF of 418, 990, 249 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 418, 990, 249 using Euclid's Algorithm?
Answer: For arbitrary numbers 418, 990, 249 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.