# Write the smallest 5-digit number and express it in the form of its prime factors by tree diagram.

Prime numbers are the numbers that have only two factors, that are, 1 and the number itself.

## Answer: The smallest 5-digit number is ten thousand represented as 10,000 and its prime factorization is 2×2×2×2×5×5×5×5.

Let's write the smallest 5-digit number and it's prime factorization using the tree diagram.

**Explanation:**

The smallest 5-digit number is ten thousand represented as 10,000 and its prime factorization is shown below using the tree diagram.

### Thus, the smallest 5-digit number is 10000, and its prime factorisation using tree diagram is 2×2×2×2×5×5×5×5.

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