noun /ˈmʌltɪˌplaɪər,ˈmʌɫ.tɪ.ˌplaɪ.ə(ɹ),ˈmʌɫ.tɪ.ˌplaɪ.ɚ/
In the expression 5 × 7, the "5" is a multiplier.
b) An adjective indicating the number of times something is to be multiplied.
The score multiplier increases each time you complete a level of the video game.
Wikipedia foundation.