The Prime Number Triangle Shawl transforms a simple triangular shape into something quietly meditative, where mathematics guides texture and color. Bands of garter, eyelets, and stockinette unfold in a sequence determined by prime numbers, creating a piece that feels both structured and organic.

This design is ideal for makers who enjoy relaxing, intuitive knitting. The repeating four-stitch increase keeps the geometry effortless, while the prime-based sections introduce a gentle sense of progression.

Highly adaptable, this shawl works beautifully in any yarn weight and color combination.

Whether you’re drawn to the soothing flow of the stitches or the quiet poetry of the concept, this shawl is a project you can truly settle into.

Yarn
• Any weight yarn can be used
• Yardage will depend on yarn weight and number of repeats worked
• You’ll want a minimum of 2 skeins of Color 1 and 1 skein of Color 2

Recommended Needles
• Fingering: US 5 (3.75 mm) or 6 (4 mm)
• DK: US 7 (4.5 mm) or US 8 (5 mm)
• Worsted: US 8 (5 mm) or US 9 (5.5 mm)

Gauge
• Gauge is not critical for this pattern
• Use a needle size that results in desired fabric

Notes
• Worked flat and top-down

Finished Size
• Size is completely customizable by working more or fewer repeats
• Finished size will vary depending on gauge and repeats worked

Notions
• 4 stitch markers
• Yarn needle for weaving in ends

Skill Level: Adventurous Beginner

A Sister Stitches crochet version can be found here: https://www.ravelry.com/patterns/library/prime-number-sha...