$$= \frac { 15500 \times 28 \times 28 \times 28 } { 25 \times 25 \times 25 }$$
$\frac{2722048}{125}=21776.384$
$$\frac{28\times 28\times 28\times 124}{5\times 25}$$
$$\frac{784\times 28\times 124}{5\times 25}$$
$$\frac{21952\times 124}{5\times 25}$$
$$\frac{2722048}{5\times 25}$$
$$\frac{2722048}{125}$$
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$\frac{2 ^ {8} \cdot 7 ^ {3} \cdot 31}{5 ^ {3}} = 21776\frac{48}{125} = 21776.384$