GRE
The units digit of M
2
The remainder when 11,999,999 is divided by 12
11
r
1
The greatest prime factor of $$2m$$
The greatest prime factor of $$m^{2}$$
$$\frac{1}{1+\frac{1}{x}}$$
$$\frac{x}{x+1}$$
$$\frac{1}{\frac{1}{a}+\frac{1}{15}+\frac{1}{14}+\frac{1}{13}+\frac{1}{12}}$$
$$\frac{1}{\frac{1}{b}+\frac{1}{15}+\frac{1}{14}+\frac{1}{13}+\frac{1}{12}}$$
$$x$$
$$6$$
0
y+2
x-2
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