The only "factors" of 7 ... the only numbers that can divide into 7 evenly without a remainder ... are 1 and 7.
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49 is the square of 7. It is the Atomic number of Indium. the 49er refer to the Californian Gold Rush. The number of strings on a Harp. The International Direct Dial phone number for Germany. The 49th State is Alasksa. The divisers are 1, 7 and 49, it is a natural number following 48.....No nothing special here
7+7+7+7+7+7+7+7 is the same as 7 multiplied by 8, so the answer is 56.
7+7+7+7=28
One way (there may be more) is: 77/7 + 7 + 7 + 7 + 7/7 + 7/7 +7/7 + 7/7 + 7/7 = 11 + 21 + 5 = 37
7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 x 7 = 732 = 1104427674243920646305299201