Question

what will come next in the series??.

=> 2,5,13,73,...
=> 11,35,148,389,1445,...

Please respond if u know answer.....

Answer 1

Step-by-step explanation:

1. 2 , 5,13,73, 86

therefore the next number will be 86

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Answer 2

Answer:

Series➡️5,13,25,45,73,117,169

➡️5

➡(4×2)+5=13

️➡️(4×3)+13=25

➡️(4×5)+25=45

➡️(4×7)+45=73

➡️(4×11)+73=117

➡️(4×13)+117=169

Multiply 4 with prime numbers.