Chapter 1
Real Numbers
Euclid's division lemma, the Fundamental Theorem of Arithmetic, HCF and LCM, and proofs of irrationality.
Syllabus source: NCERT Mathematics Class X
Study this chapter
- chapter_overviewReal Numbers — Chapter OverviewWhat Class 10 Real Numbers covers, why it matters, and how the chapter is usually asked in the CBSE board exam.About 6 min read
- concept_lessonThe Fundamental Theorem of ArithmeticEvery composite number breaks into primes in exactly one way — and that single idea lets you find HCF and LCM quickly.About 9 min read
Practice
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What this chapter covers
The Fundamental Theorem of Arithmetic
HCF and LCM by prime factorisation
Revisiting irrational numbers