Anumber is called a visible factor number if it is divisible by each of its non-zero digits. for example, 102 is divisible by 1 and 2, so it is a visible factor number. how many visible factor numbers are there from 100 through 150, inclusive?

The answer is 19.

Step-by-step explanation:

If we check all the numbers from 100 to 150 only 19 of them can be divided by  their own non-zero digits. This the case for 100 ; 101 ; 102 ; 104 ; 105;  110;  111 ; 112 ; 115 ; 120 ; 122 ; 124 ; 126 ; 128 ; 132 ; 135 ; 140 ; 144  and 150 .

Notice that most of them are even numbers or ended by 5.

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