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avatar+201 

What is the largest number, all of whose digits are 3 or 2, and whose digits add up to 11?

 Apr 6, 2020
 #1
avatar+252 
+3

To maximize the amount of digits, we should make as many digits as we can a 2. That would mean we get 4 2's since we need space for a three. Then we get one three. The largest number we can make with those digits is 32222.

 

smileysmileysmiley

 Apr 6, 2020
 #2
avatar+116 
+3

A three digit number whose digits add up to 9? ... The largest 3 digit number whose digits are all primes is 777. The largest 3 digit number with different prime digits is 753

 Apr 6, 2020
 #3
avatar+201 
+1

Thanks for the detailed explanation. I needed that!

 Apr 6, 2020

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