Highest Common Factor of 120, 665, 953, 438 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 120, 665, 953, 438 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 120, 665, 953, 438 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 120, 665, 953, 438 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 120, 665, 953, 438 is 1.
HCF(120, 665, 953, 438) = 1
HCF of 120, 665, 953, 438 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 120, 665, 953, 438 is 1.
Highest Common Factor of 120,665,953,438 is 1
Step 1: Since 665 > 120, we apply the division lemma to 665 and 120, to get
665 = 120 x 5 + 65
Step 2: Since the reminder 120 ≠ 0, we apply division lemma to 65 and 120, to get
120 = 65 x 1 + 55
Step 3: We consider the new divisor 65 and the new remainder 55, and apply the division lemma to get
65 = 55 x 1 + 10
We consider the new divisor 55 and the new remainder 10,and apply the division lemma to get
55 = 10 x 5 + 5
We consider the new divisor 10 and the new remainder 5,and apply the division lemma to get
10 = 5 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 120 and 665 is 5
Notice that 5 = HCF(10,5) = HCF(55,10) = HCF(65,55) = HCF(120,65) = HCF(665,120) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 953 > 5, we apply the division lemma to 953 and 5, to get
953 = 5 x 190 + 3
Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 3 and 5, to get
5 = 3 x 1 + 2
Step 3: We consider the new divisor 3 and the new remainder 2, and apply the division lemma to get
3 = 2 x 1 + 1
We consider the new divisor 2 and the new remainder 1, and apply the division lemma to get
2 = 1 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 5 and 953 is 1
Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(953,5) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 438 > 1, we apply the division lemma to 438 and 1, to get
438 = 1 x 438 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 438 is 1
Notice that 1 = HCF(438,1) .
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Frequently Asked Questions on HCF of 120, 665, 953, 438 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 120, 665, 953, 438?
Answer: HCF of 120, 665, 953, 438 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 120, 665, 953, 438 using Euclid's Algorithm?
Answer: For arbitrary numbers 120, 665, 953, 438 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.