Question

39. Explain why 5 x 11 x 17 + 17 is a composite number while 7 x 6 x 3 x 5 + 5 is not a composite
number.​

Answer 1

Answer:

5*11*7*17+11 is a composite number because it has two factors.If we multiply and add 7*6*3*5+5 it is coming as 631 so it is a prime number

Answer 2

Step-by-step explanation:

5*11*17+17

=17(5*11+1)

= 17*56

Therefore, 17 is the common factor.

7*6*3*5+5

= 5 (7*6*3+1)

= 5*127

Therefore, 5 is the common factor.

So both of the given numbers are composite.