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kelvinmalonekt kelvinmalonekt
  • 19-09-2014
  • Mathematics
Answered

what is the number 21 a prime or composite

Verified Answer :

mariamikayla
mariamikayla mariamikayla
  • 19-09-2014

\(21|3 \\ 7|7 \\ 1 \\ \\ 21=3*7 \\ \\ D_{21}= \{1;3;7;21\} \\ \\ it \ means \ that \ 21 \ is \ composite \ number\)

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Anonymous Anonymous
  • 11-08-2021

Answer:

composite

Step-by-step explanation:

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