PAT 1059 Prime Factors（建立素数表）

1059 Prime Factors

Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p1​k1​×p2​k2​×⋯×pm​km​.

Input Specification:

Each input file contains one test case which gives a positive integer N in the range of long int.

Output Specification:

Factor N in the format N = p1​^k1​*p2​^k2​*…*pm​^km​, where pi​'s are prime factors of N in increasing order, and the exponent ki​ is the number of pi​ -- hence when there is only one pi​, ki​ is 1 and must NOT be printed out.

Sample Input:

97532468

Sample Output:

97532468=2^2*11*17*101*1291

总结：这道题目没太看懂题目，看懂了之后发现还不算难，需要先把所有的