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 403, 550, 945 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 403, 550, 945 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 403, 550, 945 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 403, 550, 945 is 1.
HCF(403, 550, 945) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 403, 550, 945 is 1.
Step 1: Since 550 > 403, we apply the division lemma to 550 and 403, to get
550 = 403 x 1 + 147
Step 2: Since the reminder 403 ≠ 0, we apply division lemma to 147 and 403, to get
403 = 147 x 2 + 109
Step 3: We consider the new divisor 147 and the new remainder 109, and apply the division lemma to get
147 = 109 x 1 + 38
We consider the new divisor 109 and the new remainder 38,and apply the division lemma to get
109 = 38 x 2 + 33
We consider the new divisor 38 and the new remainder 33,and apply the division lemma to get
38 = 33 x 1 + 5
We consider the new divisor 33 and the new remainder 5,and apply the division lemma to get
33 = 5 x 6 + 3
We consider the new divisor 5 and the new remainder 3,and apply the division lemma to get
5 = 3 x 1 + 2
We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get
3 = 2 x 1 + 1
We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 403 and 550 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(33,5) = HCF(38,33) = HCF(109,38) = HCF(147,109) = HCF(403,147) = HCF(550,403) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 945 > 1, we apply the division lemma to 945 and 1, to get
945 = 1 x 945 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 945 is 1
Notice that 1 = HCF(945,1) .
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 403, 550, 945?
Answer: HCF of 403, 550, 945 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 403, 550, 945 using Euclid's Algorithm?
Answer: For arbitrary numbers 403, 550, 945 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.