Question

Explain 5*7*9*8+7 is a composite number

Answer 1

Explain 5*7*9*8+7 is a composite number

so what is composit number?

a number which as more than 2 factor

so

lets see

(5*7*9*8)+7

2520 +7

2527 

factors of  2527 = 7, 19, 133, 2527

hence it is composite number

:)

Answer 2

Hey Mate !

Here is your solution :

First of all, we need to know , What is a composite number ?

A number that is having more than 2 factors.

" Or "

A number that can be expressed as product of prime numbers.

Ex :- 12 , 14 , 100 etc.

New term : Prime numbers

A number that is having only 2 factors.

Ex :- 2 ,3 , 5 etc.

Moving to your question.

We have to explain that , why ( 5 × 7 × 9 × 8 + 7 ) is a composite number ?

So,

= 5 × 7 × 9 × 8 + 7

By taking 7 as common ,

= 7 ( 5 × 9 × 8 + 1 )

= 7 ( 360 + 1 )

= 7 × 361

= 7 × 19 × 19

As, ( 5 × 7 × 9 × 8 + 7 ) can be expressed as the product of prime numbers.

Therefore, it is a composite number.

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Hope it helps !! ^_^