Question

What is the next number in the series? 1, 11, 21, 1211, 111221, 312211,_____?

Answer 1

Hi there!
Here's the answer :

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1, 11, 21, 1211, 111221, 312211,_____?

• In the series first term is 1
• Next term is obtained by explaining the previous term digits.

I term = 1
II term = one 1 = 11
III term = two 1's = 21
IV term = one 2 one 1 = 1211
V term = one 1 one 2 two 1's = 111221
VI term = three 1's two 2's 0ne 1= 312211
VII term = one 3 one 1 two 2's two 1's = 13112221

1, 11, 21, 1211, 111221, 312211,$\underline{13112221}$




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Hope it helps