Highest Common Factor of 972, 636, 387 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 972, 636, 387 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 972, 636, 387 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 972, 636, 387 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 972, 636, 387 is 3.
HCF(972, 636, 387) = 3
HCF of 972, 636, 387 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 972, 636, 387 is 3.
Highest Common Factor of 972,636,387 is 3
Step 1: Since 972 > 636, we apply the division lemma to 972 and 636, to get
972 = 636 x 1 + 336
Step 2: Since the reminder 636 ≠ 0, we apply division lemma to 336 and 636, to get
636 = 336 x 1 + 300
Step 3: We consider the new divisor 336 and the new remainder 300, and apply the division lemma to get
336 = 300 x 1 + 36
We consider the new divisor 300 and the new remainder 36,and apply the division lemma to get
300 = 36 x 8 + 12
We consider the new divisor 36 and the new remainder 12,and apply the division lemma to get
36 = 12 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 12, the HCF of 972 and 636 is 12
Notice that 12 = HCF(36,12) = HCF(300,36) = HCF(336,300) = HCF(636,336) = HCF(972,636) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 387 > 12, we apply the division lemma to 387 and 12, to get
387 = 12 x 32 + 3
Step 2: Since the reminder 12 ≠ 0, we apply division lemma to 3 and 12, to get
12 = 3 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 3, the HCF of 12 and 387 is 3
Notice that 3 = HCF(12,3) = HCF(387,12) .
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Frequently Asked Questions on HCF of 972, 636, 387 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 972, 636, 387?
Answer: HCF of 972, 636, 387 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 972, 636, 387 using Euclid's Algorithm?
Answer: For arbitrary numbers 972, 636, 387 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.