GRE
<2a, 4b>
<4a, 2b+1>
The sum of the first n positive prime numbers
The sum of the first n positive integers
The number of different prime factors of $$n$$
4
m
5
R
0
The remainder when $$3^{4n+2}+5$$ is divided by 10
The smallest integer $$n$$, $$n$$ > 2, such that $$n-2$$ is divisible by 3, 4, 5, and 6
362
$$S$$
51
$$y-x$$
3
$$x-k$$
$$(-2)^{-5}$$
-1
x
y
$$f(x+4)-f(x)$$
12
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