A Monthly Letter on Thinking, Mathematics, and Clarity

One carefully written email each month. No noise. No algorithms. Only ideas worth revisiting.

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Upcoming Courses

Foundations of Intermediate Algebra and Number Theory Part A

Core algebraic techniques, structural thinking, and number-theoretic intuition developed slowly and rigorously.

  • Algebraic manipulations
  • Divisibility 1
  • Polynomials 1
  • Quadratics

Foundations of Intermediate Algebra and Number Theory Part B

A continuation focusing on deeper number-theoretic and algebraic themes, designed to strengthen reasoning at the same level of rigor.

  • Divisibility 2
  • Polynomials 2
  • Modular Arithmetic
  • Number Bases

Intro to Counting and Probability

Combinatorial thinking from first principles, with emphasis on clarity, structure, and clean reasoning.

  • Basic counting principles
  • Permutations and combinations
  • Overcounting
  • Introductory probability

About 3 is prime™

3 is prime™ is an independent education project devoted to clarity of thought, mathematical depth, and long-term intellectual growth.

We work with students who want more than quick techniques or short-term results—students who care about understanding why methods work, how ideas connect, and what remains invariant across problems. Our courses emphasize structure, reasoning, and first principles, cultivating habits of thought that transfer naturally to unfamiliar and challenging situations.

Like prime numbers, the ideas we value are indivisible and foundational. They do not promise immediate speed, but they reward persistence, sharpening intuition and problem-solving ability over time.

Contact

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