Question

state wether 7×11×13+7 is a composite number or a prime number​

Answer 1

Hey mate ☺️

7×11×13+7 is a composite number as 7(11×13+1) is divisible by 7

Hope it helps you ☺️✌️✌️

Answer 2

$\tt{To\:Prove:-}$

7×11×13+7 is a composite number

(A composite number is a number which has more than 2 factors)

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$\tt{Proof:-}$

=> 7×11×13+7

=> 7 ( 1×11×13+1)

=> 7(143+1)

=> 7(144)

=> 7 × 2 × 2 × 3×2 × 2 × 3

Since, this is a product of primes, it is a composite number.

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