谁知道答案，看你算得快马？ - Quant版 - 未名存档

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Quant版 - 谁知道答案，看你算得快马？

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m*********y 发帖数: 127	1 谁知道答案，看你算得快马？ 1. What is the smallest composite number over 10,000 whose digits sum to the same value as the sum of the digits of its prime factorization? 2.What is the average of the smallest twin primes greater than 1 trillion?
p*****k 发帖数: 318	2 (1) 3796875=(3^5)*(5^6) (2) 10^12+62
a*z 发帖数: 294	3 you memorized it or calc'ed it?

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