Positive exponents are a way to express repeated multiplication of a number by itself. For example, in the expression 2^3, the number 2 is multiplied by itself three times: 2 × 2 × 2, which equals 8. The exponent, in this case, is 3, indicating how many times to multiply the base number. When a number has a positive exponent, it shows how many times to use that number in multiplication. For instance, 5^2 means 5 × 5, resulting in 25. Positive exponents help simplify calculations and are fundamental in mathematics, especially in algebra and scientific notation.