Question

explain why 3×11×13+13 are composite number??? plZzz answer this question
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Answer 1

Answer:

Here 3*11*13+13=13[3*11+1]

So, it is divisible by 13 henceit is a composite no.

Answer 2

Answer:

Step-by-step explanation:

Look buddy,

3*11*13+13 can also be written as

13(3*11+1)

So the number has 13 as is factor.

So it has more than atleast 3 factors(1, itself and 13)

And 3 factors is more than 2 factors. So the number is composite.