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 1225, 434 i.e. 7 the largest integer that leaves a remainder zero for all numbers.
HCF of 1225, 434 is 7 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 1225, 434 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 1225, 434 is 7.
HCF(1225, 434) = 7
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 1225, 434 is 7.
Step 1: Since 1225 > 434, we apply the division lemma to 1225 and 434, to get
1225 = 434 x 2 + 357
Step 2: Since the reminder 434 ≠ 0, we apply division lemma to 357 and 434, to get
434 = 357 x 1 + 77
Step 3: We consider the new divisor 357 and the new remainder 77, and apply the division lemma to get
357 = 77 x 4 + 49
We consider the new divisor 77 and the new remainder 49,and apply the division lemma to get
77 = 49 x 1 + 28
We consider the new divisor 49 and the new remainder 28,and apply the division lemma to get
49 = 28 x 1 + 21
We consider the new divisor 28 and the new remainder 21,and apply the division lemma to get
28 = 21 x 1 + 7
We consider the new divisor 21 and the new remainder 7,and apply the division lemma to get
21 = 7 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 7, the HCF of 1225 and 434 is 7
Notice that 7 = HCF(21,7) = HCF(28,21) = HCF(49,28) = HCF(77,49) = HCF(357,77) = HCF(434,357) = HCF(1225,434) .
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 1225, 434?
Answer: HCF of 1225, 434 is 7 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 1225, 434 using Euclid's Algorithm?
Answer: For arbitrary numbers 1225, 434 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.