NProduct

NProduct[f, {i, imin, imax}] gives a numerical approximation to the product.

NProduct[f, {i, imin, imax, di}] uses a step di in the product.

Examples

Numerical product:

NProduct[1 + 1/n^2, {n, 1, Infinity}]
(* 3.67608 *)

Finite product:

NProduct[n, {n, 1, 10}]
(* 3.6288*10^6 *)

Please visit the official Wolfram Language Reference for more details.