Question Video: Finding the Smallest Composite Number between Two Given Numbers Mathematics • 4th Grade

What is the smallest composite number between 31 and 37?


Video Transcript

What is the smallest composite number between 31 and 37?

Before we can answer this question, we need to define what we mean by composite number. A composite number is a whole member that has at least two other whole number factors. Composite numbers are not prime. We also need to notice that this question is asking about the values between 31 and 37. On the number line, these will be the whole numbers, 32, 33, 34, 35, and 36. But it won’t include 31 or 37.

We’re looking for the smallest composite number. The smallest whole number is 32. And now we only need to check and find out if 32 is composite. Does 32 have at least two other factors besides itself and one? Well, I know that 32 is an even number, which means it’s divisible by two. In fact, 16 times two equals 32, which means 32 is a composite number. And it’s the smallest composite value between 31 and 37, which makes 32 our final answer.

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