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How many even perfect square factors does 2^4*5^5 have?

 May 18, 2022
 #1
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2^4 * 5^5 ==16 x  3125 ==50,000

 

50,000==[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 3125, 5000, 6250, 10000, 12500, 25000, 50000]>>Total = 30 divisors.

 

EVEN perfect squares==4, 16, 100, 400, 2,500, 10,000==Total of 6

 May 20, 2022
 #2
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Deleted because it was incorrect. Guest's answer is correct.

 May 20, 2022
edited by BuilderBoi  May 20, 2022

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