Question

Both numbers are prime in which of the following pairs of numbers?

Answer 1

Answer:

$\huge{ \boxed{ \sf{5 \: and \: 7}}}$

☪ Question :

☇ Both numbers are prime in which of the following pairs of numbers ?

☐ 5 and 9

☐ 7 and 9

☐ 5 and 6

☑ 5 and 7 ---- Answer !!

☐ 7 and 8

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☥ Let's explore about prime numbers and composite numbers !!

• A prime number is a whole number that only has two factors which are one and itself.
• A composite number is a whole number with 3 or more factors.

$\underline{ \text{Still \: confused ?}}$

Alright , Let's check all the options :

☐ 5 and 9

⤿ 5 is a prime number as it can only be divided by 1 and itself but 9 is not a prime number as it can be divided by more than two numbers ( i.e 1 , 3 and 9 )

☐ 7 and 9

⤿ 7 is a prime number as it can only be divided by 1 and itself but 9 is a composite number as it can be divided by 1 , 3 and 9.

☐ 5 and 6

⤿ 5 is a prime number as it can only be divided by 1 and itself but 6 is a composite number as it can be divided by more than two numbers ( i.e 1 , 3 and 6 )

☑ 5 and 7

⤿ Yeah ! 5 and 7 are prime numbers as they only have two factors which are one and itself.

☐ 7 and 8

⤿ 7 is a prime number as it can only be divided by 1 and itself but 8 is a composite number as it can be divided by more than two numbers ( i.e 1 , 2 , 4 and 8 )

Hope I helped!

Have a wonderful day ! ツ

~TheAnimeGirl ♡

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Answer 2

Answer:

D. 5 and 7

Step-by-step explanation:

A 5 and 9  => 9 is not a prime number

B. 7 and 9  => 9 is not a prime number

C. 5 and 6  => 6 is not a prime number

D. 5 and 7

E. 7 and 8  => 8 is not a prime number