How many letters does the top answer for “the number of which a given number is the logarithm” have?

The most common answer is antilog (7 letters).

Crossword clue: the number of which a given number is the logarithm

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

antilog 7 letters wn-def

the number of which a given number is the logarithm

antilogarithm 13 letters wn-def

the number of which a given number is the logarithm