Highest Common Factor of 646, 358 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 646, 358 i.e. 2 the largest integer that leaves a remainder zero for all numbers.
HCF of 646, 358 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 646, 358 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 646, 358 is 2.
HCF(646, 358) = 2
HCF of 646, 358 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 646, 358 is 2.
Highest Common Factor of 646,358 is 2
Step 1: Since 646 > 358, we apply the division lemma to 646 and 358, to get
646 = 358 x 1 + 288
Step 2: Since the reminder 358 ≠ 0, we apply division lemma to 288 and 358, to get
358 = 288 x 1 + 70
Step 3: We consider the new divisor 288 and the new remainder 70, and apply the division lemma to get
288 = 70 x 4 + 8
We consider the new divisor 70 and the new remainder 8,and apply the division lemma to get
70 = 8 x 8 + 6
We consider the new divisor 8 and the new remainder 6,and apply the division lemma to get
8 = 6 x 1 + 2
We consider the new divisor 6 and the new remainder 2,and apply the division lemma to get
6 = 2 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 646 and 358 is 2
Notice that 2 = HCF(6,2) = HCF(8,6) = HCF(70,8) = HCF(288,70) = HCF(358,288) = HCF(646,358) .
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Frequently Asked Questions on HCF of 646, 358 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 646, 358?
Answer: HCF of 646, 358 is 2 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 646, 358 using Euclid's Algorithm?
Answer: For arbitrary numbers 646, 358 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.