Find the odd one out in the given series: 51,64,121,144,256 April 5, 2021 / By Preparation Point / Combined Competitive Examination Paper 2019 Mcqs SPSC Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn 51 121 144 256 Each of the numbers except 51, is a perfect square. Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn