what is the gcf of 15 AND 16?
404099
1; that's the only number they have in common as a factor.  240 is the LCM (the other poster did the LCM instead of the GCF.)
606056
Great question!  I learned something answering this one.  Click on start- all programs- accessories - calculator.  Then get the scientific calculator. (View-Scientific) This will allow you to evaluate 15^12 (without having the answer rounded), hit mod, and enter 17.   The answer is 16.
273202
15 grams of carbohydrate are in one carbohydrate exchange, or serving.
302771
1) 15\nbecause 15*8 = 120\n120 in Z(17) = 1\n2) 5\nbecause 5*11 = 55\n55 in Z(54) = 1
1125139
15 + 68 = difference in temperature
790837
15 will get you 30.\n\n15 Will Get You 30!\n\n15 WILL GET YOU 30!!
594665
21+7*3\n35=7*5\n70=7*5*2\n\nthe only thing in all 3 is 7 so the GCF=7
1160001
1 pound = 453.6 g\n1 pound = 16 oz\n16 oz = 453.6 g\n16 / 453.6 oz = 1 g\n.03527 oz = 1 g
42679
28:  1, 7\n155:  1, 5\n\ni think
843375
3x + 1 = 5x - 15\n16 = 2x\nx = 8
872589
20/16=x/12\ncross multiply and divide\n16x=240\nx=15
968306
well....\n\n1 F F 9\n\n...+ F 7\n\n9+7 is 16...so, 0 in the first place.\ncarry 1.....\n\nF + F + 1 = 15 +15 +1 = F (carry a 1)\n\nF+1 = 0 (carry 1)\n\n1 + 1 = 2\n\nso:    2 0 F 0
635376
3 goes into 16 5 times\n5 times 3 is 15\n16 - 15 = 1\n16/3 = 5&1/3
1133339
1cm/15m=Xcm/40m\n\nX=40/15=8/3cm\n\nI hope that does the trick
909535
1) \n76>40+4c\n36>4c\nc<9\n\n2) 1500>100+17.5p\n1400>17.5p\np<80
780226
lets take the common multiple 210\n15,35,21 and 2 are the factors\nI was thinking of 105 but only 15.35.21 come to my mind
831410
factors of 32 are 1, 2, 4, 8, 16, 32\nfactors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80\n\nGreatest common factor is 16.