Question

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

Answer 1

Determine the $5-$digit smallest number and express it in the form of its prime factors by a tree diagram.

Prime numbers only have two factors: $1$ and the number itself.

The $5-$digit smallest number is $10,000$, and its prime factorisation is depicted in the tree diagram below.

Hence, the $5-$digit smallest number is $“10,000”$ and its prime factorisation is $"2\times 2\times 2\times 2\times 5\times 5\times 5\times 5"$.