4.3 What Is a Credit Score? What It Means and Why It Matters
Credit scores are three-digit numerical representations (300-850 scale) of creditworthiness calculated from credit report data using proprietary algorithms—primarily FICO and VantageScore models—summarizing borrowing history, payment behavior, debt levels, and credit usage patterns into single number that lenders use for loan approval and interest rate determination. Learn score ranges, five weighted factors, checking methods, improvement strategies, building from zero, and avoiding common mistakes.









