Is 71 a Composite Number?

Nope. Seventy one ain't a composite. As far as I can tell. Way easier than factoring, am I right? Have fun storming the castle.

Maybe you'd like to know what is the absolute value of -71?
Or try another number:

Random atomic facts:radon francium radium lawrencium rutherfordium dubnium seaborgium bohrium hassium meitnerium