Question

Write Prime numbers between 20to30​

Answer 1

Answer:

23 ,29

Step-by-step explanation:

The numbers between 20 and 30 are:

21

,

22

,

23

,

24

,

25

,

26

,

27

,

28

,

29

Even numbers, other than  

2

are not prime because by definition of being even they are divisible by  

2

. This then leaves:

21

,

23

,

25

,

27

,

29

21

=

3

×

7

- not prime

25

=

5

×

5

- not prime

27

=

3

×

9

- not prime

This leaves:

23

,

29

For both of these numbers the only numbers they are evenly divisible by is  

1

and themselves.

Therefore,  

23

and  

29

are the prime numbers between 20 and 30.

Answer 2

Answer:

23 and 29

Step-by-step explanation:

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