Highest Common Factor of 840, 178 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 840, 178 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 840, 178 is 2 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 840, 178 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 840, 178 is 2.
HCF(840, 178) = 2
HCF of 840, 178 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 840, 178 is 2.
Highest Common Factor of 840,178 is 2
Step 1: Since 840 > 178, we apply the division lemma to 840 and 178, to get
840 = 178 x 4 + 128
Step 2: Since the reminder 178 ≠ 0, we apply division lemma to 128 and 178, to get
178 = 128 x 1 + 50
Step 3: We consider the new divisor 128 and the new remainder 50, and apply the division lemma to get
128 = 50 x 2 + 28
We consider the new divisor 50 and the new remainder 28,and apply the division lemma to get
50 = 28 x 1 + 22
We consider the new divisor 28 and the new remainder 22,and apply the division lemma to get
28 = 22 x 1 + 6
We consider the new divisor 22 and the new remainder 6,and apply the division lemma to get
22 = 6 x 3 + 4
We consider the new divisor 6 and the new remainder 4,and apply the division lemma to get
6 = 4 x 1 + 2
We consider the new divisor 4 and the new remainder 2,and apply the division lemma to get
4 = 2 x 2 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 840 and 178 is 2
Notice that 2 = HCF(4,2) = HCF(6,4) = HCF(22,6) = HCF(28,22) = HCF(50,28) = HCF(128,50) = HCF(178,128) = HCF(840,178) .
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Frequently Asked Questions on HCF of 840, 178 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 840, 178?
Answer: HCF of 840, 178 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 840, 178 using Euclid's Algorithm?
Answer: For arbitrary numbers 840, 178 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.
