Highest Common Factor of 945, 720, 139, 957 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 945, 720, 139, 957 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 945, 720, 139, 957 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 945, 720, 139, 957 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 945, 720, 139, 957 is 1.
HCF(945, 720, 139, 957) = 1
HCF of 945, 720, 139, 957 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 945, 720, 139, 957 is 1.
Highest Common Factor of 945,720,139,957 is 1
Step 1: Since 945 > 720, we apply the division lemma to 945 and 720, to get
945 = 720 x 1 + 225
Step 2: Since the reminder 720 ≠ 0, we apply division lemma to 225 and 720, to get
720 = 225 x 3 + 45
Step 3: We consider the new divisor 225 and the new remainder 45, and apply the division lemma to get
225 = 45 x 5 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 45, the HCF of 945 and 720 is 45
Notice that 45 = HCF(225,45) = HCF(720,225) = HCF(945,720) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 139 > 45, we apply the division lemma to 139 and 45, to get
139 = 45 x 3 + 4
Step 2: Since the reminder 45 ≠ 0, we apply division lemma to 4 and 45, to get
45 = 4 x 11 + 1
Step 3: We consider the new divisor 4 and the new remainder 1, and apply the division lemma to get
4 = 1 x 4 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 45 and 139 is 1
Notice that 1 = HCF(4,1) = HCF(45,4) = HCF(139,45) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 957 > 1, we apply the division lemma to 957 and 1, to get
957 = 1 x 957 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 957 is 1
Notice that 1 = HCF(957,1) .
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Frequently Asked Questions on HCF of 945, 720, 139, 957 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 945, 720, 139, 957?
Answer: HCF of 945, 720, 139, 957 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 945, 720, 139, 957 using Euclid's Algorithm?
Answer: For arbitrary numbers 945, 720, 139, 957 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.