. The number is either 10^1 or 10^3 or 10^ 5 or . . . .
If it is more than 10, then it is not 10^1. The next possibility is 10^3which is 1000, which has factors 2, 5, 10, 20, 25, 40, 50, 80, . . . . .
What constitutes a "multiplication sentence" exactly ? This is not a standard mathematical term. Do you mean "reduce it to its prime factors" ?
1000 = 2 x 2 x 2 x 5 x 5 x 5
which is a lot more than 4 factors. Or not, if you write it as 2³ x 5³.
But you could say the same about 100 000 = 2^5 x 5^5
or about 10 000 000 = 2^7 x 5^7
Take your pick. This is a very badly stated question.
