Question: maple15 refresh / does not display numbers

hello,

after defining N_1 N_2 and N_3 with long numbers, and defining M by N_1*N_2*N_3 i tried to step backwards.

By entering something like: M/N_1 (what is exactly like N_2*N_3) it does not show me full numbers, but instead 1/something*M.

After refreshing M and afterwards refreshing M/N_1 it totally worked out and showed me the product of N_2*N_3

Now my question is: how can i prevent this odd display format without refreshing everytime? (i tried it with "assume", but it didnt work out) I am aware that sometimes it is useful to show the exact numbers by using a variable, but if there is something "easy" to calculate, why doesnt maple do it?

Kind Regards

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