Discovering the Fascinating Life of explain why 7x11x13+13 and 7x6x5x4x3x2x1+5 are composite

explain why 7x11x13+13 and 7x6x5x4x3x2x1+5 are composite

explain why 7x11x13+13 and 7x6x5x4x3x2x1+5 are composite