Question

Which number will replace the question mark (?) in
the following series?
4, 10, 27, 140, ?

Answer 1

Answer:

?=973

Step-by-step explanation:

4, 10, 27, 140, ?

So, analyzing the sequence

For 10,

4(2) + 2 = 10

For 27,

10(3) - 3 = 27

For 140,

27(5) + 5 = 140

These are successive prime number with a specific pattern of addition and subtraction.

So, For ?:

140(7) - 7 = 973

Hence, Answer is 973

Answer 2

Answer:

973 ........

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