Stdents can copy Pascal's triangle and color in specific numbers following specific divisibilty tests to form interesting patterns.

Divisible by 2:

Divisible by 3:

Divisible by 5:

Divisible by 7:

The combination of patterns lends intself to discussions of divisibility by 6 and 10, and other number theory extensions.

The same color key is used for all of these designs: pink denotes divisible by 2, blue for divisible by 3, green for divisible by 5, and yellow for divisible by 7.

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