Explain why 7×6×5×4×3×2×1+5 is a composite number.
Explain why 7×11×13+13 & 7×6×5×4×3×2×1+5 are composite numbers ?
Explain why 7 X 13 X13 + 13 and 7 X 6 X 5 X 4 X 3 X 2 X 1 + 5 are composite numbers.