555

Not sure what you want with “555.” Here are a few possibilities:

• If you mean the number 555: prime factorization is 3 × 5 × 37. It’s divisible by 3 and by 5 (sum of digits 15; ends with 5).

• If you’re asking in a Thai texting context: 555 means “hahaha.”

• If you’re prepping for an exam and want more practice, I can give you related problems (e.g., divisibility, prime factorization, etc.). Tell me the topic.