Highest Common Factor of 157, 399 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 157, 399 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 157, 399 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 157, 399 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 157, 399 is 1.
HCF(157, 399) = 1
HCF of 157, 399 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 157, 399 is 1.
Highest Common Factor of 157,399 is 1
Step 1: Since 399 > 157, we apply the division lemma to 399 and 157, to get
399 = 157 x 2 + 85
Step 2: Since the reminder 157 ≠ 0, we apply division lemma to 85 and 157, to get
157 = 85 x 1 + 72
Step 3: We consider the new divisor 85 and the new remainder 72, and apply the division lemma to get
85 = 72 x 1 + 13
We consider the new divisor 72 and the new remainder 13,and apply the division lemma to get
72 = 13 x 5 + 7
We consider the new divisor 13 and the new remainder 7,and apply the division lemma to get
13 = 7 x 1 + 6
We consider the new divisor 7 and the new remainder 6,and apply the division lemma to get
7 = 6 x 1 + 1
We consider the new divisor 6 and the new remainder 1,and apply the division lemma to get
6 = 1 x 6 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 157 and 399 is 1
Notice that 1 = HCF(6,1) = HCF(7,6) = HCF(13,7) = HCF(72,13) = HCF(85,72) = HCF(157,85) = HCF(399,157) .
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Frequently Asked Questions on HCF of 157, 399 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 157, 399?
Answer: HCF of 157, 399 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 157, 399 using Euclid's Algorithm?
Answer: For arbitrary numbers 157, 399 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.