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3 years ago

Which number is prime? 21 22 23 24

Mathematics

2 answers:

Kobotan [32]3 years ago

7 0

Step-by-step explanation:

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prime numbers - prime numbers numbers are those numbers who have only one factor 1 and that no it self

21 is divisible by 3 and 7 so it is not a prime number
22 is divided by 2 and 11 so it is not a prime number
23 is divisible by oly 1 and the number it self it means 23 is a prime number
24 is divisible by 2 , 3, 4, 8, 12

Hope it helps u mate

Artemon [7]3 years ago

5 0

Answer:

23 is the prime number

How?

▶

<u>21 is divisible by 3</u>

<u>21 is divisible by 322 is divisible by 2</u>

<u>21 is divisible by 322 is divisible by 223 is not divisible by any no. </u>

<u>21 is divisible by 322 is divisible by 223 is not divisible by any no. 24 is divisible by 2 </u>

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Answer:

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Step-by-step explanation:

The angle $\alpha$ is the angle opposite to the side of length 5 and adjacent to the side of length 12. From Trigonometry we remember the following relationships:

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$\sec \alpha = \frac{\sqrt{5^{2}+12^{2}}}{12}$

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