Mass factor decomposition (0) <P2012_1>

Source: Internet
Author: User

Mass factor decomposition
(Prime.cpp/c/pas)

"Problem description"
A known positive integer n is the product of two different prime numbers, trying to find the larger prime number.

Input
The input file name is prime.in.
The input has only one row and contains a positive integer n.

Output
The output file name is Prime.out.
The output has only one row and contains a positive integer p, which is the larger prime number.

"Data Range"
For 60% of data, 6≤n≤1000. For 100% of data, 6≤n≤2*109.

Mass factor decomposition (0) <P2012_1>

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