Chapter 3: Playing with Numbers
๐ About this chapter
Factors, multiples, prime numbers, HCF and LCM โ the building blocks of number theory.
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Learning Objectives
By end of this chapter you will:
1
Understand Factors and Multiples and Prime and Composite Numbers2
Apply 3 key formulas3
Define: Factor, Multiple, Prime4
Solve NCERT exercises confidently๐ Prerequisites
๐Number Systems, Polynomials
๐ Chapter Stats
Difficulty๐ฑ Beginner
Est. Time49 min
Topics5
Formulas3
Experiments0
Progress0%
๐ก Did You Know?
โฆThere are 25 prime numbers less than 100
โฆLargest known prime has 24 million+ digits!
โฆ2 is the only even prime
โฆEvery composite number has a unique prime factorisation (Fundamental Theorem)
๐ Key Terms(click any term for AI explanation)