{"id":25603,"date":"2014-11-03T00:43:28","date_gmt":"2014-11-03T04:43:28","guid":{"rendered":"http:\/\/sonderbooks.com\/blog\/?p=25603"},"modified":"2016-02-08T23:22:09","modified_gmt":"2016-02-09T03:22:09","slug":"my-prime-factorization-cardigan","status":"publish","type":"post","link":"https:\/\/sonderbooks.com\/blog\/?p=25603","title":{"rendered":"My Prime Factorization Cardigan"},"content":{"rendered":"

I did it! More than two years after beginning<\/a>, I have finally completed my Prime Factorization Cardigan!<\/p>\n

\"Wearing<\/a><\/p>\n

Here’s how it works! The stripes each represent a counting number. They go from left to right, cuff to cuff. 1 is black, the background color (which is a factor of everything). Then each prime gets a new color. 2 is blue; 3 is pink; 5 is yellow; 7 is purple…. <\/p>\n

Composite numbers get the combination of colors for their factors. 6 = 2 x 3, so it’s alternating blue and pink. 10 = 2 x 5, so blue and yellow. 12 = 2 x 2 x 3, so two stitches of blue followed by one of pink…. <\/p>\n

Perfect powers get multiple rows. 4 = 2 x 2, so two rows of blue; 8 = 2 x 2 x 2, so three rows of blue; 9 = 3 x 3, so two rows of pink. I think my favorite is 36 = 2 x 2 x 3 x 3, so I did two rows of alternating blue and pink.<\/p>\n

I put labels in one picture, to give the pattern:<\/p>\n

\"Labeled<\/a><\/p>\n

As for details, I used Plymouth Encore yarn, 75% acrylic, 25% wool — it is not expensive and comes in many colors. I looked online for a pattern knitted cuff-to-cuff, and found this Rainbow Lace Jacket<\/a>. I of course changed the colors. I knitted the stripes in garter stitch, and the rows in between the stripes in black stockinette.<\/p>\n

And now for more pictures! First, an overall look at the sweater again:<\/p>\n

\"PF<\/a><\/p>\n

And with the arms down:<\/p>\n

\"PF<\/a><\/p>\n

And the back: (I decided to make the numbers go two-dimensionally across the sweater, from cuff to cuff. So the back is a mirror of the front.)<\/p>\n

\"PF<\/a><\/p>\n

And here’s more detail, Numbers 17 to 32 (The powers of 2 are easy to spot! They are the multiple rows of blue.):<\/p>\n

\"Cardigan17-32\"<\/a><\/p>\n

Then Numbers 26 to 38:<\/p>\n

\"Cardigan26-38\"<\/a><\/p>\n

34 to 47:<\/p>\n

\"Cardigan34-47\"<\/a><\/p>\n

41 to 58:<\/p>\n

\"Cardigan41-58\"<\/a><\/p>\n

51 to 63:<\/p>\n

\"Cardigan51-63\"<\/a><\/p>\n

And finally, 64 to 78:<\/p>\n

\"Cardigan64-78\"<\/a><\/p>\n

There you have it! The latest in my prime factorization knitting adventures. Let’s see, I feel compelled to summarize what I’ve done. <\/p>\n

It began with the Prime Factorization Sweater<\/a>.<\/p>\n

\"prime-factorization-sweater\"<\/a><\/p>\n

Then when that became wildly popular on the internet<\/a>, I made a Prime Factorization T-shirt<\/a>. (These are available for sale<\/a>, by the way.)<\/p>\n

\"Twitter<\/a><\/p>\n

I experimented with stripes when I made my Prime Factorization Scarf<\/a>, and planned out how to do this cardigan.<\/p>\n

\"Prime<\/a><\/p>\n

Then my siblings were expecting babies. For my sister’s baby, I knitted a Coded Blessing Blanket<\/a>.<\/p>\n

\"Blessing<\/a><\/p>\n

For my brother’s baby, nothing but a Prime Factorization Blanket<\/a> would do.<\/p>\n

\"prime_factorization_blanket\"<\/a><\/p>\n

Which got me going on a Pascal’s Triangle Shawl<\/a>.<\/p>\n

\"PascalsTriangleShawl\"<\/a><\/p>\n

Which got me to start another, prettier one<\/a> (Still not finished).<\/p>\n

\"Pascals<\/a><\/p>\n

And brings me back to the Prime Factorization Cardigan!<\/p>\n

\"Wearing<\/a><\/p>\n

Tweet<\/a>