lujinwael lujinwael

14-09-2021
Mathematics

contestada

Explain why 221 and 391 cannot be prime numbers

Respuesta :

20200023130021 20200023130021

14-09-2021

Answer:

because the product of a two non-necessarily distinct prime numbers

Step-by-step explanation:

would have been required that 221 has only two divisors. i.e., itself and 1. However, 221 is a semiprime (also called biprime or 2-almost-prime)

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