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Find the number of even digits in the product 2,222,222,222 * 9,999,999,999.

 Nov 25, 2019
 #1
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Find the total number of digits then divide by half.

 

 

do some experimenting with numbers, come on.

 Nov 26, 2019
 #2
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Just count them: 

 

2,222,222,222 * 9,999,999,999 = 22,222,222,217,777,777,778                                                          

 Nov 26, 2019

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