Draw factor tree for 90 Share with your friends Share 1 Manbar Singh answered this So, prime factorisation of 90,90 = 2 × 3 × 3 × 5 3 View Full Answer Pratik Ghumatkar answered this The underlined nos are broken down in the next line.902 45 3 15 3 5 1 Hamza Alam answered this Hi,Here the answer to your question. 0 Hamza Alam answered this sorry, i wrote it by mistake -1