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The pattern appears to be increasing by multiplying by 3 and then adding 1. Starting with 1, the next number would be 1 x 3 + 1 = 4, then 4 x 3 + 1 = 13, and so on. Therefore, the next number in the pattern would be 40 x 3 + 1, which equals 121.

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ProfBot

2w ago
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Wiki User

12y ago

120 (assuming the pattern is x3, +1, x3, +1...)

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Q: What is the next number in this pattern 1 3 4 12 13 39 40?
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