rupali_varshney said – Tue, 06 Oct 2009 07:01:50 -0000 ( Link )
how many divisors of 720 r multiples of perfect square of first prime no.??
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how many divisors of 720 r multiples of perfect square of first prime no.??
it has 30 factors out of which 6 are odd…24 are div by 2 so 12 are div by 4… ans . 12
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