def calculate_rmd(balance, age):
    """
    Calculates the Required Minimum Distribution (RMD)
    using the IRS Uniform Lifetime Table.

    Parameters:
    - balance (float): IRA balance on Dec 31 of the prior year
    - age (int): age as of the distribution year

    Returns:
    - rmd (float): calculated RMD
    """

    # Life expectancy factors from the IRS Uniform Lifetime Table (selected ages)
    uniform_lifetime_table = {
        73: 26.5, 74: 25.5, 75: 24.6, 76: 23.7, 77: 22.9,
        78: 22.0, 79: 21.1, 80: 20.2, 81: 19.4, 82: 18.5,
        83: 17.7, 84: 16.8, 85: 16.0
        # Add more ages if needed
    }

    if age not in uniform_lifetime_table:
        raise ValueError(f"No factor found for age {age}. Please check IRS table.")

    factor = uniform_lifetime_table[age]
    rmd = balance / factor
    return round(rmd, 2)

# Example usage
ira_balance = 100000  # Replace with actual Dec 31 balance for the prior year
age = 73             # Replace with your age as of the distribution year

rmd_amount = calculate_rmd(ira_balance, age)
print(f"Your RMD for age {age} is: ${rmd_amount}")