The Roman numeral "IV" represents the number 4. This is because:
- "I" stands for 1
- "V" stands for 5
- When a smaller numeral (I) is placed before a larger numeral (V), it is subtracted from the larger numeral.
So, IV means 5 - 1, which equals 4. This notation is used instead of writing "IIII" to save space and to follow the conventions of Roman numeral writing. In summary, IV = 4.
