Highest Common Factor of 225, 162, 57 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 225, 162, 57 i.e. 3 the largest integer that leaves a remainder zero for all numbers.
HCF of 225, 162, 57 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 225, 162, 57 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 225, 162, 57 is 3.
HCF(225, 162, 57) = 3
HCF of 225, 162, 57 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 225, 162, 57 is 3.
Highest Common Factor of 225,162,57 is 3
Step 1: Since 225 > 162, we apply the division lemma to 225 and 162, to get
225 = 162 x 1 + 63
Step 2: Since the reminder 162 ≠ 0, we apply division lemma to 63 and 162, to get
162 = 63 x 2 + 36
Step 3: We consider the new divisor 63 and the new remainder 36, and apply the division lemma to get
63 = 36 x 1 + 27
We consider the new divisor 36 and the new remainder 27,and apply the division lemma to get
36 = 27 x 1 + 9
We consider the new divisor 27 and the new remainder 9,and apply the division lemma to get
27 = 9 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 9, the HCF of 225 and 162 is 9
Notice that 9 = HCF(27,9) = HCF(36,27) = HCF(63,36) = HCF(162,63) = HCF(225,162) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 57 > 9, we apply the division lemma to 57 and 9, to get
57 = 9 x 6 + 3
Step 2: Since the reminder 9 ≠ 0, we apply division lemma to 3 and 9, 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 9 and 57 is 3
Notice that 3 = HCF(9,3) = HCF(57,9) .
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Frequently Asked Questions on HCF of 225, 162, 57 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 225, 162, 57?
Answer: HCF of 225, 162, 57 is 3 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 225, 162, 57 using Euclid's Algorithm?
Answer: For arbitrary numbers 225, 162, 57 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.