Question

Explain why 5 × 7 × 11 + 13 × 17 is a composite number

Answer 1

Answer:

prime number contains two factors i.e 1 and the number itself. but in 5×7×11×13×17=606

which is not a prime number it is composite number

Answer 2

5 × 7 × 11 + 13 × 17=606

composite no. is a positive integer that has at least one divisor other than 1 and itself.

Therefore, 606 has 1, 2, 3, 6, 101, 606 as divisors (total 6 in no.) that's why it is a composite no.