259,000 You round down due to the 3 in 309
It is in the middle: (123+309)/2 = 216
309 is not prime. 309 = 3 * 103
The result is 300
It depends on the degree of rounding. To the nearest quintillion, the above number is 0.
300
310
310
No, 2 is not a factor of 309 because it does not evenly divide into 309. The factors of 309 are 1, 3, 103, and 309.
3 x 103 = 309
no
300