You need at least two numbers to find a GCF. If that's 55 and 9, or 5 and 59, their GCFs are both 1.
559
559 * 438 = 244,842
1, 13, 43, 559
559 + 5590 = 6149
They are 1, 13, 43 and 559.
559 ÷ 2 = 279 with remainder 1
79.8571
11.6458
560
559 in standard form: 5.59 × 102
0.0072
559 ÷ 85 = 6 with remainder 49 or 6.58 times.