The result of $100 \times 1000$ is:

$100 \times 1000 = 100,000$

Would you like more details or have any other questions?

Here are 5 related questions to expand on this:

1. What is $200 \times 500$?
2. How does multiplying by 10, 100, or 1000 affect a number?
3. What is the result of $100 \times 10000$?
4. How do powers of 10 relate to multiplication?
5. Can you express $100,000$ in scientific notation?

Tip: Multiplying by 1000 is equivalent to shifting the decimal point three places to the right.