How to multiply 123 and 321 in one go
Assume 123 as ABC and 321 as EFG respectively.
The simple (but long) formula is :
AE /(AF+EB) / (AG+BF+CE)/(BG+CF)/(CG)
=3/8/14/8/3 (here 14 is two digit, so add 1
of this to 8 - the earlier digit)
=39483
Notes
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