PYQ - LCM of two numbers — task. Maths CBSE Live product, Class 10 (2025-26).

If two positive integers \(p\) and \(q\) can be expressed as \(p = 18 a^2 b^4\) and \(q = 20 a^3 b^2\), where \(a\) and \(b\) are prime numbers, then LCM \((p, q)\) is:

\(180 a^3 b^4\)
\(2 a^2 b^2\)
\(180 a^2 b^2\)
\(12 a^2 b^2\)

If the product of two co-prime numbers is \(628\), then their HCF is :

\(79\)
\(1\)
\(10\)
628

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1. PYQ - LCM of two numbers

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