perplexus.info :: Just Math : Erase as much as needed

Erase as much as needed (Posted on 2023-05-11)

Let

P=1*2*3*4* … *2022*2023

What is the lowest quantity of numbers out of the above 2023 that erasing them will cause the remaining result to be terminated by the digit 1 ?

See The Solution Submitted by Ady TZIDON

Rating: 5.0000 (1 votes)

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