<p>In this article, we propose necessary upper bounds for the second, third, and fourth smallest prime divisors of a friend of 10 based on the number of its distinct prime divisors.</p>

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Upper Bounds for the Prime Divisors of Friends of 10

  • Sourav Mandal,
  • Sagar Mandal

摘要

In this article, we propose necessary upper bounds for the second, third, and fourth smallest prime divisors of a friend of 10 based on the number of its distinct prime divisors.