Koliko savršenih kvadrata dijeli umnožak
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How many perfect squares are divisors of the product
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[lang=hr]
Koliko savršenih kvadrata dijeli umnožak $1!\cdot 2!\cdot 3!\cdot 4!\cdot 5!\cdot 6!\cdot 7!\cdot 8!$ ?
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[lang=en]
How many perfect squares are divisors of the product $1!\cdot 2!\cdot 3!\cdot 4!\cdot 5!\cdot 6!\cdot 7!\cdot 8!$ ?
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