वह सबसे छोटी धनात्मक संख्या ज्ञात कीजिए जिससे 1,200 को गुणा करने पर वह एक पूर्ण वर्ग बन जाए।

Find the least number that must be subtracted from 7123 so as to get a perfect square.

If 576 × 121 = 69696, then √69696 = ?

When all the students of a school are made to stand in rows to form a square, fewer than 10 students are left surplus. If there are 1,230 students in the school, how many students will stand in each row?