Page 1 - Prime factorisation
P. 1
Subject – Mathematics
Chapter 3 – FACTORS AND MULTIPLES
Sub-topic-3:- PRIME FACTORISATIONS
Practice Time:
SUBJECTIVE QUESTIONS:
1. Write the prime factorization of the following by division method.
a. 240 b. 45
2. Write the prime factorization of the following by factor tree method.
a. 120 b. 81
Exercise 18 (page no. 68)(question no. are given as per the book)
Q8. (a) , ( d )
Q9. ( a) ,( c )
OBJECTIVES QUESTIONS:
1. The prime factorization of 24:
a. 2x2x2x3 b. 3x8 c. 6x4 d. 12x2
2. Which of the following represents the complete factor tree for 84?
a) b) c) d)
