Question

Explain why 11×13×15×17+17 is a composite number

Answer 1

rite Ans. is
$11 \times 13 \times 15 \times 17 + 17 \\ 143 \times 15 \times 17 + 17 \\ 2145 \times 17 + 17 \\ 36465 + 17 \\ 36482$

Answer 2

= 17(11×13×15×1+1)
= 17(2145+1)
= 17×2146
= 17×2×29×37
A composite number is a number that has more than 2 factors.
Hence, it is a composite number