several ways; several kinds; number of ways
Used to express that there are multiple methods, types, or possibilities. Often appears with counters or in questions about how many ways.
There are several ways to solve this problem.
How many colors can I choose from?
数通り also means 'several ways', but 幾通り is more common in everyday speech and questions.
Compound of 幾 (iku, 'how many') and 通り (tōri, 'ways, kinds'). The reading いくとおり is a standard combination.