Funny Number

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Problem Duda is very funny guy in UVCE and recently he found a new kind of numbers. He calls those numbers as funny numbers. Duda says that funny number is numbers which has prime number of prime factors. For Example : prime factors of number 6 are 3 and 2, so 6 has 2 prime factors and 2 is a prime number, so 6 is a funny number. similarly prime factors of number 8 is 2, so 8 has only one prim

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