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No.
It depends which one digit numbers are used. The ten can be any digits from -9 to 9, covering 19 different numbers. If you pick one of those 19 numbers ten times that would be 6131066257801 different possibilities of the number of one digit sets you could make.19*19*19*19*19*19*19*19*19*19=6131066257801
19 is the prime number.
1 and 19.
There are no two numbers that can be multiplied to get 19; 19 is not divisible by any number.