The roman numerals in your password should be V and VII , because 5×7=355\times 7=355×7=35, and in Roman numerals 5 is V and 7 is VII.

What the rule means

When a puzzle or game says “the roman numerals in your password should multiply to 35.” it wants:

  • Two (or more) Roman numerals that represent numbers.
  • When those numbers are multiplied, the result is 35.

The integer factor pairs of 35 are:

  • 1 × 35
  • 5 × 7

In Roman numerals:

  • 1 → I
  • 5 → V
  • 7 → VII
  • 35 → XXXV

So mathematically, the valid combinations are:

  • I and XXXV
  • V and VII

Most guides and forum discussions about this rule in The Password Game specifically use V and VII as the expected answer.

How to use this in a password

Depending on how strict the game/system is, you can usually:

  • Place them together:
    • ...VVI I... (careful: this can look like “VIII”)
    • ...VVII...
  • Separate them with letters, digits, or symbols, as long as both V and VII appear:
    • CatVdogVII!
    • JuneV77VII?

Some walkthroughs recommend putting V and VII in clear, unbroken form (no bolding, subscripts, etc., unless later rules require formatting changes).

Why V and VII are preferred

  • They use smaller, simpler numerals than XXXV and I.
  • They are the pair most explicitly named in help pages and Q&A sites for this exact line: “The roman numerals in your password should multiply to 35.”
  • They tend to create fewer conflicts with other rules in The Password Game (like length, readability, or additional Roman-numeral constraints).

TL;DR:
For the rule “the roman numerals in your password should multiply to 35.” use a password that clearly contains V and VII somewhere, for example: JuneV7!VIIpepsi.

Information gathered from public forums or data available on the internet and portrayed here.