$$(1 \times 2 \times 3)+(2 \times 3 \times 4)+(3 \times 4 \times 5)+(10$$
$100$
$$2\times 3+6\times 4+12\times 5+10$$
$$6+6\times 4+12\times 5+10$$
$$6+24+12\times 5+10$$
$$30+12\times 5+10$$
$$30+60+10$$
$$90+10$$
$$100$$
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$2^{2}\times 5^{2}$
