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 661, 369 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 661, 369 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 661, 369 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 661, 369 is 1.
HCF(661, 369) = 1
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 661, 369 is 1.
Step 1: Since 661 > 369, we apply the division lemma to 661 and 369, to get
661 = 369 x 1 + 292
Step 2: Since the reminder 369 ≠ 0, we apply division lemma to 292 and 369, to get
369 = 292 x 1 + 77
Step 3: We consider the new divisor 292 and the new remainder 77, and apply the division lemma to get
292 = 77 x 3 + 61
We consider the new divisor 77 and the new remainder 61,and apply the division lemma to get
77 = 61 x 1 + 16
We consider the new divisor 61 and the new remainder 16,and apply the division lemma to get
61 = 16 x 3 + 13
We consider the new divisor 16 and the new remainder 13,and apply the division lemma to get
16 = 13 x 1 + 3
We consider the new divisor 13 and the new remainder 3,and apply the division lemma to get
13 = 3 x 4 + 1
We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get
3 = 1 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 661 and 369 is 1
Notice that 1 = HCF(3,1) = HCF(13,3) = HCF(16,13) = HCF(61,16) = HCF(77,61) = HCF(292,77) = HCF(369,292) = HCF(661,369) .
Here are some samples of HCF using Euclid's Algorithm calculations.
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 661, 369?
Answer: HCF of 661, 369 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 661, 369 using Euclid's Algorithm?
Answer: For arbitrary numbers 661, 369 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.