# From 30 to 60 Is Not Twice as Hard

The author proves and generalizes the fact that 60 is the largest positive integer $$n$$ such that all smaller numbers relatively prime to $$n$$ are primes or powers of one prime.

Old Node ID:
3402
MSC Codes:
11A41
Author(s):
<p>Michael Dalezman (Yeshiva University)</p>
Publication Date:
Monday, February 8, 2010
Original Publication Source:
Mathematics Magazine
Original Publication Date:
April, 2000
Subject(s):
Algebra and Number Theory
Number Theory
Primes
Flag for Digital Object Identifier:
Publish Page:
Furnished by JSTOR:
File Content:
Rating Count:
27.00
Rating Sum:
78.00
Rating Average:
2.89
Modify Date:
Monday, February 8, 2010