W3C error – Bad value

I checked my page on https://validator.w3.org and repoers 2 errors the same type.

1. Error: Bad value 640px for attribute width on element img: Expected a digit but saw p instead.
From line 261, column 287; to line 261, column 737
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2. Error: Bad value 250px for attribute height on element img: Expected a digit but saw p instead.
From line 261, column 287; to line 261, column 737
rger map”></
How to fix it?
Regards,
Robbie