Identify the odd number: Among 119, 154, 85, and 51, three are multiples of 17 while one is not. Choose the non-multiple of 17.

Introduction / Context:
This set highlights a specific divisor (17). The outlier is the number not divisible by 17.

Given Data / Assumptions:

• 119 = 7 * 17; 85 = 5 * 17; 51 = 3 * 17.
• 154 is near 153 (9 * 17) and 170 (10 * 17).

Concept / Approach:
Compare to adjacent multiples of 17 to test divisibility quickly.

Step-by-Step Solution:

Verification / Alternative check:
Compute 154 ÷ 17 ≈ 9.058… non-integer. Hence it is the outlier.

Why Other Options Are Wrong:
Each is an exact multiple of 17.

Common Pitfalls:
Assuming “nearby” to a multiple implies divisibility; exact equality is required.

Final Answer:
154 is not divisible by 17 and is the odd number.