When the fifth grade students of a certain school stand in line, there are 3 people in each row, and the result is 1 more student; if they are changed to 5 students in each row, the result is 3 more students; if they are changed to 7 students in each row, the result is 5 more students. How many fifth graders are there at least in this school?
某校五年级学生站队时，每排3人，结果多出1人；改为每排5人，结果多出3人；再改为每排7人，结果多出5人．这个学校五年级学生至少有多少人？
<gadget id="calculator">3 * 5 * 7</gadget>
<output>105</output>

<gadget id="calculator">105 - 2</gadget>
<output>103</output>

<result>103</result>