That's an infinite list unless you restrict it to factor pairs. The factor pairs of 120 are (120,1)(60,2)(40,3)(30,4)(24,5)(20,6)(15,8)(12,10)
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8, 5 and 3 can all go into 120 evenly.
120 and all the multiples of 120.
1 x 120 = 120 2 x 60 = 120 3 x 40 = 120 4 x 30 = 120 5 x 24 = 120 6 x 20 = 120 8 x 15 = 120 10 x 12 = 120 12 x 10 = 120 15 x 8 = 120 20 x 6 = 120 24 x 5 = 120 30 x 4 = 120 40 x 3 = 120 60 x 2 = 120 120 x 1 = 120
1,5,15
To determine the number of times the digit 1 appears between 1 and 120, we can consider each place value separately. In the units place, the digit 1 appears 12 times (1, 11, 21, ..., 111). In the tens place, the digit 1 appears 11 times (10, 11, 12, ..., 19). Therefore, the total number of times the digit 1 appears between 1 and 120 is 12 (from the units place) + 11 (from the tens place) = 23 times.