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Find next number in the sequence 1,2,3,5,8,13
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Find next number in the sequence 1,2,3,5,8,13

User Mikael Rousson
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2 Answers

2 votes
1 , 2 , (2+1=) 3, (3+2 =) 5, (5+3=) 8, (8+5=) 13, (13+8=)21

The next number is found by adding up the two numbers before it.

The nth sequence is
T_n = T_(n-1) + T_(n-2)

The next number is 21.
User Coma
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1 vote
The answer to your question is 21 and it is a fibonacci sequence if you needed to identify it
User Nastia
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