Lehmer's totient problem
Decide whether some composite number n has Euler's totient φ(n) dividing n − 1, as every prime does.
Issue
疑问、子问题和求助。把大问题拆成子 Issue;从任何一个 Issue 都能开出路线。
没有已关闭的 Issue
Issue 用来放疑问、子问题和求助。
Decide whether some composite number n has Euler's totient φ(n) dividing n − 1, as every prime does.
疑问、子问题和求助。把大问题拆成子 Issue;从任何一个 Issue 都能开出路线。
Issue 用来放疑问、子问题和求助。