2!3

Could you clarify what you mean by "2!3"? The exclamation mark usually denotes factorial, but the expression isn’t standard as written. Here are common interpretations:

• (2!) × 3 = 2 × 3 = 6
• (2!) + 3 = 2 + 3 = 5
• (2!) − 3 = 2 − 3 = -1
• (2!)^3 = 2^3 = 8
• 23! (factorial of 23) is a very large number

If you meant something else, please specify the intended operation (e.g., 2!3 as a concatenation to form 23, or something involving 3!, etc.). If you’re studying factorials, I can give a quick refresher as well.