To rewrite \( 100^{3/2} \) as a product of identical factors, we first express it in simpler terms:
\[ 100^{3/2} = (100^{1/2})^3 \]
Next, we calculate \( 100^{1/2} \):
\[ 100^{1/2} = \sqrt{100} = 10 \]
Now we substitute this back into our expression:
\[ (100^{1/2})^3 = 10^3 \]
Calculating \( 10^3 \):
\[ 10^3 = 1000 \]
Thus, the expression \( 100^{3/2} \) can be rewritten in simplified form:
\[ 100^{3/2} = 1000 \]
Therefore, the product is:
\[ \boxed{1000} \]