10! - Numberphile
Ten factorial is 10x9x8x7x6x5x4x3x2x1 - or six weeks! More links & stuff in full description below ↓↓↓ Featuring Dr James Grime, aka singingbanana. NUMBERPHILE Website: http://www.numberphi...
==========
OK, so today we've got a little mathematical nugget for you. I'm going to talk about 10 factorial. So 10 factorial is what you get when you multiply the numbers 10 times 9 times 8 times 7-- and you go all the way down, times 2, times 1. How big is 10 factorial? On your calculator you will find a little bottom with an exclamation mark after it. There we go. That is how big 10 factorial is. Let's write this down. 3,628,800. Now what I want to talk about is 10 factorial seconds. Now, how long is 10 factorial seconds? All right, so 3,628,800 seconds. How long is that? Well, it turns out to be exactly six weeks. Let me show you. We've got 10 factorial seconds, so how many minutes is that? There are 60 seconds in a minute, so I&...
==========
OK, so today we've got a little mathematical nugget for you. I'm going to talk about 10 factorial. So 10 factorial is what you get when you multiply the numbers 10 times 9 times 8 times 7-- and you go all the way down, times 2, times 1. How big is 10 factorial? On your calculator you will find a little bottom with an exclamation mark after it. There we go. That is how big 10 factorial is. Let's write this down. 3,628,800. Now what I want to talk about is 10 factorial seconds. Now, how long is 10 factorial seconds? All right, so 3,628,800 seconds. How long is that? Well, it turns out to be exactly six weeks. Let me show you. We've got 10 factorial seconds, so how many minutes is that? There are 60 seconds in a minute, so I&...
