English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10

Find the H.C.F. of 252525 and 363636

Advertisements
Advertisements

Question

Find the H.C.F. of 252525 and 363636

Sum
Advertisements

Solution

To find the H.C.F. of 252525 and 363636

Using Euclid’s Division algorithm

363636 = 252525 × 1 + 111111

The remainder 111111 ≠ 0.

∴ Again by division algorithm

252525 = 111111 × 2 + 30303

The remainder 30303 ≠ 0.

∴ Again by division algorithm.

111111 = 30303 × 3 + 20202

The remainder 20202 ≠ 0.

∴ Again by division algorithm

30303 = 20202 × 1 + 10101

The remainder 10101 ≠ 0.

∴ Again using division algorithm

20202 = 10101 × 2 + 0

The remainder is 0.

∴ 10101 is the H.C.F. of 363636 and 252525.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Numbers and Sequences - Exercise 2.2 [Page 46]

APPEARS IN

Samacheer Kalvi Mathematics [English] Class 10 SSLC TN Board
Chapter 2 Numbers and Sequences
Exercise 2.2 | Q 3 | Page 46

RELATED QUESTIONS

Express the number as a product of its prime factor:

140


Explain why 7 × 11 × 13 + 13 and 7 × 6 × 5 × 4 × 3 × 2 × 1 + 5 are composite numbers.


Write down the decimal expansions of the following rational numbers by writing their denominators in the form 2m × 5n, where m, n are non-negative integers.

\[\frac{129}{2^2 \times 5^7}\]


Write the sum of the exponents of prime factors in the prime factorization of 98.


Find the LCM and HCF of the following pair of integers and verify that LCM × HCF = product of the two numbers.

336 and 54


Find the LCM and HCF of the following integers by applying the prime factorisation method.

8, 9 and 25


On a morning walk, three persons step off together and their steps measure 40 cm, 42 cm and 45 cm, respectively. What is the minimum distance each should walk so that each can cover the same distance in complete steps?


Statement A (Assertion): If product of two numbers is 5780 and their HCF is 17, then their LCM is 340.

Statement R (Reason): HCF is always a factor of LCM.


Assertion (A): The HCF of two numbers is 5 and their product is 150. Then their LCM is 40.

Reason(R): For any two positive integers a and b, HCF (a, b) × LCM (a, b) = a × b.


National Art convention got registrations from students from all parts of the country, of which 60 are interested in music, 84 are interested in dance and 108 students are interested in handicrafts. For optimum cultural exchange, organisers wish to keep them in minimum number of groups such that each group consists of students interested in the same artform and the number of students in each group is the same. Find the number of students in each group. Find the number of groups in each art form. How many rooms are required if each group will be allotted a room?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×