I'm sorry, but it seems that you have not provided me with a specific topic or prompt for your essay. Without more information, it is difficult for me to write an essay on "free essay number."
In general, an essay is a written piece of work that presents an author's ideas, opinions, or arguments on a particular topic. The purpose of an essay can vary widely, depending on the specific assignment or the goals of the writer. Some essays may be written to inform or educate, while others may be written to persuade or argue a particular point of view.
To write a successful essay, it is important to have a clear understanding of the purpose of the essay, as well as a clear and well-organized structure. This typically includes an introduction, body paragraphs, and a conclusion. The introduction should provide background information on the topic and introduce the main points or arguments that will be discussed in the essay. The body paragraphs should support the main points with evidence and examples, and the conclusion should summarize the key points and restate the main argument of the essay.
It is also important to choose a topic that is well-suited to the specific assignment or purpose of the essay. This may involve conducting research to gather information and evidence, and organizing and synthesizing this information in a clear and logical way. Good essay writing also requires careful editing and proofreading to ensure that the final product is well-written and free of errors.
Overall, writing a successful essay requires careful planning, research, and writing skills. I hope this general information is helpful, but please let me know if you have a more specific prompt or topic in mind.