In the school extracurricular activity group, there are 26 students in the calligraphy group, and 11 students in the mathematics interest group are 23 times less than the calligraphy group. How many students are there in the mathematics group?
学校课外活动小组，书法组有学生26人，数学兴趣小组的人数比书法组人数的23倍少11人，数学组有学生多少人？
<gadget id="calculator">26 * 23</gadget>
<output>598</output>

<gadget id="calculator">598 - 11</gadget>
<output>587</output>

<result>587</result>