PushyPushy, 3 bytes
(Non-competing) Non-competing as the language postdates the challenge.
RP#
Explanation:
R \ Find and pushPush the inclusive range of the number onto the stackinput
P \ Push the product of all numbers to the stack
# \ Print the first item in the stack
Try it onlineTry it online!
Thanks to FlipTack for correcting the built in problem (and adding a byte)