In the formulas "0.32*0.25", "2.6*1.2", "92.13*0.75", "0.16*1.9", "0.625*3.6", how many formulas have the product smaller than the first factor?
在算式"0.32*0.25"、"2.6*1.2"、"92.13*0.75"、"0.16*1.9"、"0.625*3.6"中，积比第一个因数小的算式有多少道．
<result>2</result>