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Kryger [21]
3 years ago
12

Explain why 221 and 391 cannot be prime numbers

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
6 0

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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