ABCD equals DCBA

What 4-digit number abcd satisfies this equation?

4 × abcd = dcba

2178

4 × 2178 = 8712

Posted in Brain Teasers

 

1 Comment on "ABCD equals DCBA"


Danny Dabieto says
February 1, 2020 @ 13:51

if it was multiplied by 9, it would be 1089.


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