Question 206097
Let's  find  the  factors  of  each  dimension
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252  factors  to 2^2 * 3^2 *7
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and  162  factors  to  2*3^4
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GCF = 2* 3^2 =18
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252/18 = 14 pieces......162/18=9 pieces
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total  squares  required  is  14 *9 =126
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check, 18*18=324,,,252*162 = 40824,,,,,40824/324 = 126,,ok