45.7*10-3 = 0.0457
457*3 = 1371
1.357 x10-3 in standard notation is: 0.001357
3 x10 30 x10
29000000
3.0467
kg x10^3
no because the last number of 457 is seven and 7 does not devide equaliy into 3. so it is not a factor of 457
2.058911321...x10^14
115
0.006533 = 6.533e-3 or 6.533 x10^-3
Not evenly because it will have a remainder
The GCF is 3.