solylopez1980 solylopez1980
  • 24-10-2019
  • Mathematics
contestada

How many odd prime numbers are there between 1 and 20?​

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Аноним Аноним
  • 24-10-2019

Answer:

[tex]8[/tex]

Step-by-step explanation:

A prime number is a number that times it self and 1.

An odd number is a number that is not divisible by 2.

So our range is 1 - 20

What numbers are prime within this range:

2,3,5,7,11,13,15,17,19

[tex]9[/tex]  [tex]numbers[/tex]

Now which out of these are odd?

2,3,5,7,11,13,15,17,19

[tex]8[/tex]  [tex]numbers[/tex]

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