Problem 2) Let Cn,d be the number of integers with 1 ≤ m

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Problem 2)
Let Cn,d be the number of integers with 1 ≤ m ≤n
such that ged(n, m) = d. Explain why the following identity holds.
n =
Σ Cn,d
1<d<n
Transcribed Image Text:Problem 2) Let Cn,d be the number of integers with 1 ≤ m ≤n such that ged(n, m) = d. Explain why the following identity holds. n = Σ Cn,d 1<d<n
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