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Maths CBSE Live product
Class 8 (2026-27)
Number Play - Textbook Aligned Version
Divisibility Shortcuts and Digital Roots
6.
NCERT | Digital Roots | Intext | Pg.130 | Q6
Question:
4
m.
I’m made of digits, each
smallest
and odd,
No shared ground with root #\(1\)—how odd!
My digits count, their sum, my root—
All point to one bold number’s pursuit—
The
largest
odd single-digit I proudly claim.
What’s my number? What’s my name?
\(9\) - largest odd number
\(111,111,111\) - repunit number
\(999,999,999\) - largest odd number
\(999,999,999\) - repunit number
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