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 357, 231, 116, 787 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 357, 231, 116, 787 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 357, 231, 116, 787 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 357, 231, 116, 787 is 1.
HCF(357, 231, 116, 787) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 357, 231, 116, 787 is 1.
Step 1: Since 357 > 231, we apply the division lemma to 357 and 231, to get
357 = 231 x 1 + 126
Step 2: Since the reminder 231 ≠ 0, we apply division lemma to 126 and 231, to get
231 = 126 x 1 + 105
Step 3: We consider the new divisor 126 and the new remainder 105, and apply the division lemma to get
126 = 105 x 1 + 21
We consider the new divisor 105 and the new remainder 21, and apply the division lemma to get
105 = 21 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 21, the HCF of 357 and 231 is 21
Notice that 21 = HCF(105,21) = HCF(126,105) = HCF(231,126) = HCF(357,231) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 116 > 21, we apply the division lemma to 116 and 21, to get
116 = 21 x 5 + 11
Step 2: Since the reminder 21 ≠ 0, we apply division lemma to 11 and 21, to get
21 = 11 x 1 + 10
Step 3: We consider the new divisor 11 and the new remainder 10, and apply the division lemma to get
11 = 10 x 1 + 1
We consider the new divisor 10 and the new remainder 1, and apply the division lemma to get
10 = 1 x 10 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 21 and 116 is 1
Notice that 1 = HCF(10,1) = HCF(11,10) = HCF(21,11) = HCF(116,21) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 787 > 1, we apply the division lemma to 787 and 1, to get
787 = 1 x 787 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 787 is 1
Notice that 1 = HCF(787,1) .
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 357, 231, 116, 787?
Answer: HCF of 357, 231, 116, 787 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 357, 231, 116, 787 using Euclid's Algorithm?
Answer: For arbitrary numbers 357, 231, 116, 787 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.