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Number Theory

Number Theory is number magic. It's the study of how math itself is structured. And it deals with the coolest numbers: primes!

Rainbow Cycles

           

If all integers are colored in the same pattern as the numbers in this grid, what color is 1234?

Modular arithmetic is the part of number theory used to study cyclical systems: systems where taking enough steps “forward” brings you back to where you started. In this quiz we'll focus exclusively on abstract coloring patterns so that we can find some general shortcuts for working with these systems.

In the modular arithmetic units later in this course, we'll expand these theories and more into shortcuts that can be applied to many real-life modular systems:

If you multiply a blue number by an orange number, what color will the product be?

Note: Assume that all integers are colored according to the same pattern as the numbers in the grid.

If you add a blue number to a yellow number, what color will the sum be?

Note: Assume that all integers are colored according to the same pattern as the numbers in the grid.

If you multiply a green number by a yellow number, what color will the product be?

Note: Assume that all integers are colored according to the same pattern as the numbers in the grid.

What color is \(8 \times 17 \, ?\)

Note: Assume that all integers are colored according to the same pattern as the numbers in the grid.

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