The GCF is 19.
CGF(442, 247) = 13.
The GCF is 1.
1, 13, 17, 19, 221, 247, 323, 4199
209 228 247 266 285 304 323 342 361 380 399
221 and 247 are one of many possible pairs.
The reciprocal of -247 is -1/247(Because -247 = -247/1
247% = 247/100
74.130% of 247= 30% * 247= 0.30 * 247= 74.1
45% of 247= 45% * 247= 0.45 * 247= 111.15
50% of 247= 50% * 247= 0.50 * 247= 123.50
247, 494 (=247*2), 741 (=247*3) etc.
247/13=19 247 is not a prime