GRE
The number of prime factors of n
The number of prime factors of $$\frac{n}{2}$$
The number of different prime factors of 2n
The number of different prime factors of $$n^{2}$$
$$\frac{3y+2}{5}$$
y
$$\frac{1}{x}$$
$$-3$$
$$\frac{20+}{4+}$$
5+
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