Highest Common Factor of 780, 975, 126 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 780, 975, 126 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 780, 975, 126 is 3 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 780, 975, 126 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 780, 975, 126 is 3.
HCF(780, 975, 126) = 3
HCF of 780, 975, 126 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 780, 975, 126 is 3.
Highest Common Factor of 780,975,126 is 3
Step 1: Since 975 > 780, we apply the division lemma to 975 and 780, to get
975 = 780 x 1 + 195
Step 2: Since the reminder 780 ≠ 0, we apply division lemma to 195 and 780, to get
780 = 195 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 195, the HCF of 780 and 975 is 195
Notice that 195 = HCF(780,195) = HCF(975,780) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 195 > 126, we apply the division lemma to 195 and 126, to get
195 = 126 x 1 + 69
Step 2: Since the reminder 126 ≠ 0, we apply division lemma to 69 and 126, to get
126 = 69 x 1 + 57
Step 3: We consider the new divisor 69 and the new remainder 57, and apply the division lemma to get
69 = 57 x 1 + 12
We consider the new divisor 57 and the new remainder 12,and apply the division lemma to get
57 = 12 x 4 + 9
We consider the new divisor 12 and the new remainder 9,and apply the division lemma to get
12 = 9 x 1 + 3
We consider the new divisor 9 and the new remainder 3,and apply the division lemma to get
9 = 3 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 195 and 126 is 3
Notice that 3 = HCF(9,3) = HCF(12,9) = HCF(57,12) = HCF(69,57) = HCF(126,69) = HCF(195,126) .
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Frequently Asked Questions on HCF of 780, 975, 126 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 780, 975, 126?
Answer: HCF of 780, 975, 126 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 780, 975, 126 using Euclid's Algorithm?
Answer: For arbitrary numbers 780, 975, 126 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.