Question

What times what equals 19

Answer 1

19 is prime meaning that only 1 and itself can multiply to get that number (excluding decimals and fractions)
so the answer would be 1 times 19

or if you want to multiply by a fraction to divide you could do
38 times 1/2=19

Answer 2

No whole numbers with evenly equal 19. So the closest would be 3.8 x 5 or 4 x 4.75.