145 is a composite number. Factor pairs: 145 = 1 x 145, 5 x 29. Factors of 145: 1, 5, 29, 145. Prime factorization: 145 = 5 x 29.
Excel file of puzzles and previous week’s factor solutions: 10 Factors 2014-06-09
Level 4 Puzzle
144 and Level 3
146 and Level 5
Sometimes they can be.
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