Explain why 7X 11 X 15+15 is a composite number?
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Answered by
2
Step-by-step explanation:
7x 11 x 15 + 15
= 15 ( 7 x 11 +1)
= 15 x (77 + 1)
= 15 x 78
= 15 x 13 x 3 x 2
=1170
Since it has more than two factors (13 ,3 ,2 ,1 and 15)
It is a composite number
Answered by
2
Answer:
Now consider
7 x 11 x 15 + 15
We can also write this as
⇒ (77 + 1) x 15
⇒ 1170
It is a composite number since the value is equal to 1014 and has more than one factor.
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