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This is a medium difficulty Coding & Algorithms question, commonly asked during Technical Screen rounds at Other.

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This question is commonly asked for Data Scientist candidates at Other during technical interviews.

Check if huge integer string is divisible by 8

Last updated: Mar 29, 2026

Quick Overview

Evaluates modular arithmetic reasoning and large-integer string-processing skills in the Coding & Algorithms domain for a Data Scientist role, with an abstraction level of algorithmic fundamentals and low-level string manipulation.

Other

Sep 10, 2025, 12:00 AM

Data Scientist

Technical Screen

Coding & Algorithms

You are given a very large non-negative integer represented as a decimal string s (it may be too large to fit in 64-bit types). Determine whether the integer is divisible by 8 without converting the full string to an integer type.

Constraints/assumptions:

1 <= len(s) <= 10^6
s contains only characters '0'..'9'
Leading zeros may appear (e.g., "00016" ).

Return true/false.

Examples:

s = "16" → true
s = "123" → false
s = "1000" → true

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