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 397, 250, 55 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 397, 250, 55 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 397, 250, 55 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 397, 250, 55 is 1.
HCF(397, 250, 55) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 397, 250, 55 is 1.
Step 1: Since 397 > 250, we apply the division lemma to 397 and 250, to get
397 = 250 x 1 + 147
Step 2: Since the reminder 250 ≠ 0, we apply division lemma to 147 and 250, to get
250 = 147 x 1 + 103
Step 3: We consider the new divisor 147 and the new remainder 103, and apply the division lemma to get
147 = 103 x 1 + 44
We consider the new divisor 103 and the new remainder 44,and apply the division lemma to get
103 = 44 x 2 + 15
We consider the new divisor 44 and the new remainder 15,and apply the division lemma to get
44 = 15 x 2 + 14
We consider the new divisor 15 and the new remainder 14,and apply the division lemma to get
15 = 14 x 1 + 1
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 397 and 250 is 1
Notice that 1 = HCF(14,1) = HCF(15,14) = HCF(44,15) = HCF(103,44) = HCF(147,103) = HCF(250,147) = HCF(397,250) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 55 > 1, we apply the division lemma to 55 and 1, to get
55 = 1 x 55 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 55 is 1
Notice that 1 = HCF(55,1) .
Here are some samples of HCF using Euclid's Algorithm calculations.
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 397, 250, 55?
Answer: HCF of 397, 250, 55 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 397, 250, 55 using Euclid's Algorithm?
Answer: For arbitrary numbers 397, 250, 55 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.