Editing 5: Blown apart

{{comic
| number    = 5
| date      = October 25, 2005<!-- per http://wayback.archive.org/web/20050101000000*/http:////www.xkcd.com//blownapart_color.jpg - though date is when it was first crawled, not necessarily posted -->
| title     = Blown apart<!--Actual title is lowercase "a"-->
| image     = blownapart_color.jpg
| titletext = Blown into prime factors
}}

== Explanation ==
The image text to this one explains the comic. An {{w|anthropomorphism|anthropomorphic}} number 70 approaches a package tied with a bow. The package appears to be a package bomb - a package that is rigged to explode upon opening. Instead of being wounded in the way a person would be, the 70 is blown into its {{w|prime factor}}s (2, 5 and 7). {{w|Prime number}}s are numbers which can not be divided by any number other than itself and 1. Factors of a number are numbers which can be multiplied together to produce that number (2x5x7 = 70). 70 has other factors, including 1, 10, 14, 35 and 70; but 2, 5 and 7 are the only factors which are prime. All other factors of 70 (other than 1) can be formed by multiplying two of the prime factors together. In other words, 2, 5 and 7 are the smallest pieces 70 can be divided (or blown) into.

== Transcript ==
:[A black number 70 sees a red package.]
:70: hey, a package!

:[The package explodes with a <<BOOM>> and a red cloud of smoke.]

:[There are a red 7, a green 5 and a blue 2 lying near a scorched mark on the floor.]

{{comic discussion}}
[[Category:Comics with color]]
[[Category:Math]]
@@ Line 1: / Line 1: @@
 {{comic
 | number    = 5
-| date      = January 1, 2006
+| date      = October 25, 2005<!-- per http://wayback.archive.org/web/20050101000000*/http:////www.xkcd.com//blownapart_color.jpg - though date is when it was first crawled, not necessarily posted -->
-| title     = Blown apart
+| title     = Blown apart<!--Actual title is lowercase "a"-->
 | image     = blownapart_color.jpg
 | titletext = Blown into prime factors
 }}
-==Explanation==
+== Explanation ==
-This comic is a mathematical and technical joke involving prime numbers and primary colors. In the comic, a black-colored ''70'' sees a package, but it turns out to be a {{w|letter bomb}} that explodes when opened. The result is pieces of the number scattered about: a red-colored ''7'', a green-colored ''5'', and a blue-colored ''2''.
+The image text to this one explains the comic. An {{w|anthropomorphism|anthropomorphic}} number 70 approaches a package tied with a bow. The package appears to be a package bomb - a package that is rigged to explode upon opening. Instead of being wounded in the way a person would be, the 70 is blown into its {{w|prime factor}}s (2, 5 and 7). {{w|Prime number}}s are numbers which can not be divided by any number other than itself and 1. Factors of a number are numbers which can be multiplied together to produce that number (2x5x7 = 70). 70 has other factors, including 1, 10, 14, 35 and 70; but 2, 5 and 7 are the only factors which are prime. All other factors of 70 (other than 1) can be formed by multiplying two of the prime factors together. In other words, 2, 5 and 7 are the smallest pieces 70 can be divided (or blown) into.
-The title text explains the logic for splitting 70 into 7, 5, and 2; as with many of the earlier comics, the title text explains the joke rather than adding to it. 7*5*2 is a {{w|prime factorization}} of the number 70. {{w|Prime number|Prime numbers}} are numbers that cannot be divided by any number other than itself and 1. Factors of a number are numbers that can be multiplied together to produce that number (e.g., 2&times;5&times;7 = 70). 70 has other factors, including 1, 10, 14, 35, and 70, but 2, 5, and 7 are the only factors that are prime. All other factors of 70 can be formed by choosing zero, two, or three of the prime factors and multiplying them together.
+== Transcript ==
+:[A black number 70 sees a red package.]
-An implication of this comic is that prime numbers would be immune to explosions, as they are already their smallest parts. Although not explicitly called out, the colors of the numbers also seem to have been blown apart. Red, green, and blue are the primary colors in the {{w|additive color}} model. These colors mixed in pairs produce cyan, magenta, and yellow, which are primary colors in the {{w|subtractive color}} model. The removal of all additive primary colors, or conversely, the combination of all subtractive primary colors, produces black, which is the color of the original 70. The comic is somewhat misleading in that red, green, and blue do not compose black in either color model, but the difference between the two models is not widely understood (most still view the additive primaries as red, yellow, and blue).
-==Transcript==
-:[A black number 70 sees a red package with the appearance of a Christmas present. This small panel is partly overlaid on the next larger panel, which is shifted down.]
-:'''70'''
 :70: hey, a package!
-:[The package explodes in a cloud of brown smoke. This panel is both behind the first in the top left corner, and below the last panel, which has been laid on top of that corner.]
+:[The package explodes with a <<BOOM>> and a red cloud of smoke.]
-:'''BOOM'''
-:[There are a red 7, a green 5, and a blue 2 lying near a scorched mark on the floor.]
-:'''<font color="red">7</font>'''
-::'''<font color="green">5</font>'''
-:'''<font color="blue">2</font>'''
-==Trivia==
+:[There are a red 7, a green 5 and a blue 2 lying near a scorched mark on the floor.]
-* This comic and [[12: Poisson]] were posted for the first time on the [[:Category:First day on xkcd.com|first day of xkcd.com]]. Both of these comics were exclusively published on [https://xkcd.com xkcd.com] and were never shared on [[LiveJournal]].
-* This comic was [[:Category:Sunday comics|released on a Sunday]].
 {{comic discussion}}
-[[Category:First day on xkcd.com]]
-[[Category:Checkered paper]]
 [[Category:Comics with color]]
-[[Category:Number theory]]
+[[Category:Math]]
-[[Category:Comics with lowercase text]]