10. Find the greatest three digit number which is a perfect square. Share with your friends Share 6 Brijendra P. answered this Refer the link:https://www.meritnation.com/ask-answer/question/how-to-find-the-largest-3-digit-number-which-is-a-perfect-s/squares-and-square-roots/4660551 0 View Full Answer Soumya Mukhija answered this the greatest 3 digit number = 999use the long division method and the number left over should be subtracted from it. It would be the greatest 3 digit perfect square 1 Joel Biju answered this 961 is the greatest 3 digit perfect square its root is 31 1 Virat Sonakiya answered this 999 is the largest 3 digit number Try to find the root of 999 subtract the remainder from 999. 2 Varsha Parmar answered this 999 is the greatest 3 digit number -6