TASK DEFINITION: Given a simple high-school level math question, you are required to solve it and provide the final answer. The final answer is always a single number. These questions can range from a variety of topics like simple arithmetic, solving equations, converting a quantity from one unit to another, finding remainders/GCD/LCM, finding probabilities etc. Each question has only one correct answer. This answer can be a positive or negative integer, a fraction or a decimal number. If the answer is a negative number use the hyphen (e.g. -42) symbol for the minus sign. For decimal numbers, do not add extra zeros after the decimal point. For fractional numbers, separate the numerator and denominator using a forward slash (e.g. 3/25).
PROBLEM: How many millimeters are there in 52138.89 kilometers?

SOLUTION: 52138890000

PROBLEM: Four letters picked without replacement from {l: 6, o: 3, f: 1, t: 1, c: 3, z: 1}. What is prob of sequence fccc?

SOLUTION: 1/5460

PROBLEM: Let z(m) = -3*m**3 + m**2 + 4*m + 3. Let v be z(-1). Calculate the highest common factor of 21 and v.

SOLUTION:
3