SOLUTION: What is the sum of the digits of the decimal form of the product 2^1999 * 5^2001?

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Question 75874: What is the sum of the digits of the decimal form of the product 2^1999 * 5^2001?
Answer by Edwin McCravy(20059) About Me  (Show Source):
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What is the sum of the digits of the decimal form of the product 2%5E1999+%2A+5%5E2001?
= 2500000000000···, (a 2001 digit number), so
the sum of the digits is 2+5+0+0+0+···+0 = 7.
Edwin