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 324, 738, 840 i.e. 6 the largest integer that leaves a remainder zero for all numbers.
HCF of 324, 738, 840 is 6 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 324, 738, 840 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 324, 738, 840 is 6.
HCF(324, 738, 840) = 6
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 324, 738, 840 is 6.
Step 1: Since 738 > 324, we apply the division lemma to 738 and 324, to get
738 = 324 x 2 + 90
Step 2: Since the reminder 324 ≠ 0, we apply division lemma to 90 and 324, to get
324 = 90 x 3 + 54
Step 3: We consider the new divisor 90 and the new remainder 54, and apply the division lemma to get
90 = 54 x 1 + 36
We consider the new divisor 54 and the new remainder 36,and apply the division lemma to get
54 = 36 x 1 + 18
We consider the new divisor 36 and the new remainder 18,and apply the division lemma to get
36 = 18 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 18, the HCF of 324 and 738 is 18
Notice that 18 = HCF(36,18) = HCF(54,36) = HCF(90,54) = HCF(324,90) = HCF(738,324) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 840 > 18, we apply the division lemma to 840 and 18, to get
840 = 18 x 46 + 12
Step 2: Since the reminder 18 ≠ 0, we apply division lemma to 12 and 18, to get
18 = 12 x 1 + 6
Step 3: We consider the new divisor 12 and the new remainder 6, and apply the division lemma to get
12 = 6 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 6, the HCF of 18 and 840 is 6
Notice that 6 = HCF(12,6) = HCF(18,12) = HCF(840,18) .
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 324, 738, 840?
Answer: HCF of 324, 738, 840 is 6 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 324, 738, 840 using Euclid's Algorithm?
Answer: For arbitrary numbers 324, 738, 840 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.