Thread: Posting Milestones (by request)
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Old 03-01-2010, 03:33 PM   #2811
WT Sharpe
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Quote:
Originally Posted by Bilbo1967 View Post
And I just added them up (but not that laboriously using Excel) and came to 1060.
The sum of all the primes less than 100 (that is, all the primes from 2 up to and including 97) is 1060.

The sum of the digits of the first 100 prime numbers (that would be all the digits in the prime numbers from 2 up to and including 541) is 1111.

The sum of the digits of the prime numbers, not the prime numbers themselves, are being added. For example, the sum of the digits of the prime number 541 would be 10 (5 + 4 + 1).
Last edited by WT Sharpe; 03-01-2010 at 03:36 PM.
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