Question

What is the next number in the series 19 23 31 47 79 143?

Answer 1

Answer:

Step-by-step explanation:

271

Answer 2

Answer:

271

Step-by-step explanation:

19 to 23 => difference is 4

23 to 31 => difference is 8 (4×2)

31 to 47 => difference is 16 (8×2)

47 to 79 => difference is 32 (16×2)

79 to 143 => difference is 64 (32×2)

so next no. would be

(64×2)+143

which is

= 271