Question

Complete the pattern: 1, 2, 5, 26 ?

• A. 52
• B. 126
• C. 676
• D. 677

Answer 1

Answer:

D. 677

A consistent pattern is:

• (1 \to 2 = 1^2 + 1)

• (2 \to 5 = 2^2 + 1)

• (5 \to 26 = 5^2 + 1)

So the next term is:

$26^2 + 1 = 676 + 1 = 677$

Answer: 677