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Maths Puzzle
Pick a number. Multiply the digits together. Continue until you get a single digit. What is the only 2 digit number which would require more than 3 multiplication?
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- 77 is the only number.
--> 77 = 7*7 =49
--> 49 = 4*9 =36
--> 36 = 3*6 =18
Nice question:) - 12 years agoHelpfull: Yes(2) No(1)
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