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me271
me271 me271
  • 08-02-2017
  • Mathematics
Answered

which of these num. are prime:
1, 11, 21, 51?

Verified Answer :

Anonymous Anonymous
  • 08-02-2017

11 is a prime number


Answer Link
Anonymous Anonymous
  • 08-02-2017

A prime number is a number that can only be divided by 1 and itself evenly.

So, the answers are 1 and 11.

Answer Link

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