An angel investor is evaluating a technology company that develops algorithms to find the greatest common divisor of large datasets. If the company processes two datasets where the sizes are 420 and 630, what is the greatest common divisor of these two numbers?

Thu, 16 Apr 2026 18:05:32 +0000

How an Angel Investor Can Spot Innovation: Understanding the GCD in Big Data Algorithms In today’s fast-evolving tech landscape, efficient algorithms are the backbone of innovation—especially in fields like data science, cryptography, and software performance optimization. For angel investors evaluating early-stage technology companies, understanding the core technology is critical. A classic example lies in algorithms designed to compute the Greatest Common Divisor (GCD), a fundamental operation with surprising relevance in large-scale data processing. Take two numbers often used in algorithmic evaluations: 420 and 630. At first glance, they may seem like arbitrary values—but in the world of big datasets, these numbers can represent sizes of data arrays or memory blocks processed by the company’s algorithm. The ability to efficiently find the GCD of large numbers reflects both mathematical sophistication and practical performance—an asset in real-world applications. What is the Greatest Common Divisor (GCD)?
The GCD of two integers is the largest positive integer that divides both without leaving a remainder. For example, the GCD of 420 and 630 determines the largest chunk size that can evenly divide both datasets—a key feature in compression, parallel processing, and resource allocation.