5. The number of common terms (terms with the same value) in the arithmetic sequences $2,5,8, \cdots, 2015$ and $4,9,14, \cdots, 2014$ is $\qquad$ .
Answer: 134.
Solution: Add 1 to each term in the two sequences, then the problem is equivalent to finding the number of common terms in the arithmetic sequence $3,6,9, \cdots, 2016$ and the arithmetic sequence $5,10,15, \cdots, 2015$; the former consists of all numbers in $M=\{1,2,3, \cdots, 2016\}$ that are divisible by 3, and the latter consists of all numbers in $M$ that are divisible by 5, so the common terms are all numbers in $M$ that are divisible by 15, and there are $\left[\frac{2016}{15}\right]=134$ such numbers.