[GPSCC-chat] Numbers Trivia

[Tian Harter]

Ummm... If you were born in '00 and you add your age this year you get 
11, not 111. You need to have been born before '00 for the math below
to add up.

Spencer Graves wrote:
> <in line>
> 
> 
> On 3/31/2011 7:50 PM, Jim Stauffer wrote:
>> This year we're going to experience four unusual dates. 1/1/11, 
>> 1/11/11, 11/1/11, 11/11/11 and that's not all...
>> Take the last two digits of the year in which you were born -now add 
>> the age you will be this year, and the result will be 111 for 
>> everyone...!!
>> This year October will have 5 Sundays, 5 Mondays and 5 Saturdays.
> 
> 
> 111 is NOT a prime number (i.e., is not divisible by any integers other 
> than 1 and itself).  This is easily seen, because the sum of the digits 
> 1+1+1 = 3.  This means it is divisible by 3.  Indeed, 111 = 3*37.  This 
> is less interesting than Jim's observations, but answers a question that 
> Jim's observations brought to my mind.
> 

-- 
Tian
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