99. Cryptarithm-product. The product of three consecutive even numbers is $87_{* * * * *} 8$. Find these numbers and fill in the blanks in the given product.
99. None of the digits in the units place of the factors can be zero. $4 \cdot 6 \cdot 8=192$, and $2 \cdot 4 \cdot 6=48$. $(87)^{\frac{1}{3}}=4.4 \ldots$, and $(88)^{\frac{1}{3}}=4.4 \ldots$. Therefore, the product $442 \cdot 444 \cdot 446=87526608$

$[M$. M., 37, 360 (November 1964).]