Definition
A small number written above and to the right of another number (the base) that indicates how many times the base is multiplied by itself. For example, in 10³ the exponent is 3, meaning 10 × 10 × 10 = 1,000.
Plain English
A shorthand that tells you how many times to multiply a number by itself. The little number up high is the count of multiplications.
Context Anchor
Seen in aviation maintenance math, especially formulas, electrical calculations, unit conversions, and numbers written in powers of ten.
Derivation
From Latin exponere, meaning 'to put out' or 'to set forth.' The exponent 'sets out' how many times the base is to be used as a factor.
Why Pilots Care
Maintenance technicians use exponents in scientific notation and in formulas for power, resistance, and physical properties. Misreading an exponent can shift a value by a factor of ten or more, leading to large calculation errors.
Intuition Check
Exponent does not mean a person who supports or explains an idea here. In this maintenance math context, it means the raised number that controls repeated multiplication.
Example Sentence 1
When converting 4,500 to scientific notation, the technician wrote it as 4.5 × 10³, where 3 is the exponent.
Example Sentence 2
Scientific notation in weight-and-balance calculations often expresses large numbers with positive or negative exponents.