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If both $$2^{a}$$ and $$3^{b}$$ are factors of 12!, what is the greatest possible value of (a+b)?
How many positive factors does 1,575 have?
16,000 has how many positive divisors?
If both n and $$\frac{72}{n}$$ are positive integers, then how many values could n have?
Of the positive integers that are less than 25, how many are equal to the sum of a positive multiple of 4 and a positive multiple of 5?
The square of which of the following numbers is 4 more than the positive multiple of 5?

Indicate all such numbers.
What is the number of integers between 1 and 226, inclusive, that are both multiples of 4 and perfect square numbers?
How many integers from 100 to 200, inclusive, are multiples of 5 but not multiples of 4?
How many integers from 100 to 200 are both multiples of 3 and odd numbers?
Set A includes all the integers from 1 to 1,000, inclusive, that are divisible by 3. How many integers in Set A cannot be divided by 5?
How many integers from 1 to 603, inclusive, are multiples of 2 or 3?
How many of the integers from 1 to 100, inclusive, are not multiples of 3 or 7?
54 is divisible by $$3^{N}$$, while 192 is divisible by $$3^{K}$$ (N and K are both integers)

Quantity A

N


Quantity B

K


The "reflection" of a positive integer is obtained by reversing its digits. For example, 321 is the reflection of 123 The positive difference between a five-digit integer and its reflection must be divisible by which of the following?
If n= 2*3*5*7*11*13*17, then which of the following statements must be true?

I. $$n^{2}$$ is divisible by 600

II. n+19 is divisible by 19

III. $$\frac{(n+4)}{2}$$ is even
If a, b, c are three consecutive positive even integers, which of the following must be an integer?

Indicate all that`s possible.
If n is a positive integer greater than 1, then n($$n^{2}$$-1) must be a multiple of which of the following integers?

Indicate all such numbers.
$$s$$ and $$t$$ are both positive integers

Which of the following statements individually provide(s) sufficient additional information to determine $$\frac{t}{s}$$ is an integer?

Indicate all such statements.
The decorating committee for a dance plans to fringe the 3-inch-wide end of a streamer by making small cuts every 1/16 inch. How many cuts must be made to fringe the end?
How many positive integers less than 100 have a remainder of 2 when divided by 13?

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