Journal of Chuxiong Normal University ›› 2023, Vol. 38 ›› Issue (3): 103-113.

• Mathematics • Previous Articles     Next Articles

Determination of Prime Numbers

NI Jiatai   

  1. No. 15 Middle of Panzhihua, Panzhihua, Sichuan Province 617000
  • Received:2021-09-06 Online:2023-05-20 Published:2023-08-07

Abstract: This paper suggests a new method to determine prime numbers that centers around four situations where the last digit of the number in question is only 1, 3, 7 or 9 in N = 30K + ɑ. Furthermore, determination of N is discussed in four situations accordingly.

Key words: prime number, composite number, factor, nonnegative integer

CLC Number: