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 399, 668, 409 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 399, 668, 409 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 399, 668, 409 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 399, 668, 409 is 1.
HCF(399, 668, 409) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 399, 668, 409 is 1.
Step 1: Since 668 > 399, we apply the division lemma to 668 and 399, to get
668 = 399 x 1 + 269
Step 2: Since the reminder 399 ≠ 0, we apply division lemma to 269 and 399, to get
399 = 269 x 1 + 130
Step 3: We consider the new divisor 269 and the new remainder 130, and apply the division lemma to get
269 = 130 x 2 + 9
We consider the new divisor 130 and the new remainder 9,and apply the division lemma to get
130 = 9 x 14 + 4
We consider the new divisor 9 and the new remainder 4,and apply the division lemma to get
9 = 4 x 2 + 1
We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 399 and 668 is 1
Notice that 1 = HCF(4,1) = HCF(9,4) = HCF(130,9) = HCF(269,130) = HCF(399,269) = HCF(668,399) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 409 > 1, we apply the division lemma to 409 and 1, to get
409 = 1 x 409 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 409 is 1
Notice that 1 = HCF(409,1) .
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 399, 668, 409?
Answer: HCF of 399, 668, 409 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 399, 668, 409 using Euclid's Algorithm?
Answer: For arbitrary numbers 399, 668, 409 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.