First hidden prime

I finished the first hidden prime sock. So named by my son, the intended recipient.

Co 52 stitches.  Knit on size 2 in ribbing for 13 rnds. Switch to size 3 and continue for 53 rnds total.  Heel knit over 24 sts for 13 slipped stitches.  Return to size 3 and complete gussets and knit plain for 61 rnds. Usual toe reductions for 13 rnds.