4 ? ?
x 3 ? ?
? ? ? 5
3 ? ? ? 0
? ? ? 7 0 0
? ? ? ? 7 ?
Do not be intimidated by the fact that there are 1018 or 1 quintillion possibilities to check.... Through the power of reasoning and computational-sense, you can narrow things considerably!
Hint: Start somewhere that makes sense...make a guess...reason out the possibilities. For example, where can you place the digit 1? Have fun.
Solution Commentary: Multiple answers can be found....much less than the 1018 initial possibilities. For example, I found at least four answers involving the multiplicand 375. Can you find these four? Can you find others that do not involve 375?