Question

Q.7 Explain why 3 x 5 x 7 x 13 + 13 is a composite number.​

Answer 1

Step-by-step explanation:

3×5×7×13 + 13

13 ( 3×5×7 +1 )

THEREFORE the no. is divisible by itself ,1 and also 13

hence it is a composite no.

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