1 x 21, 3 x 7.
the square root of a equales a
How about: 3*7 = 21 or 1*21 = 21
They are: 3*7 = 21 or 1*21 = 21
It is the multiplication result of 26 and 21 as they don't have any common number.
22x111x21x222x11
1 x 21 3 x 7 7 x 3 21 x 1
36
21x1 and 3x7
3x31=93
323 + 1 is one example.
How about: 2*24 = 48
100 equales