6. Explain why 7×11×13+13 and 7×6×5×4×3×2×1+5 are composite numbers.

Explain why 7 × 11 × 13 + 13 and 7 × 6 × 5 × 4 × 3 × 2 × 1 + 5 are composite numbers.

Class 10

Real Numbers

Exercise 1.1