9 + 120 + 600 = 729
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243 = 3 x 3 x 3 x 3 x 3 = 35
1 x 243, 3 x 81, 9 x 27, 27 x 9, 81 x 3, 243 x 1
The prime factorization of 243 will require 5 numbers. It is possible to write a factorization in two numbers, but they won't both be prime. 3 x 3 x 3 x 3 x 3 = 243 9 x 27 = 243
3 255 = 3 x 5 x 17 243 = 35 gcf = 3
81 x 3 = 243