jennjenn93
jennjenn93 jennjenn93
  • 10-05-2016
  • Mathematics
contestada

Which of the following numbers is not divisible only by prime numbers, itself and 1?
Ext
A 21 B 77 C 110 D 221 E 65

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heyitsbeca
heyitsbeca heyitsbeca
  • 10-05-2016
D, 221 because 21 can be divided by 3, 77 can be divided by 7 and/or 11, 110 can be divided by 11, 221---none---, 65 can be divided by 5.
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