问:&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#xFFFC; 5 a=2x3x5xb,b大于1,则b一定是a的素因数对还是错?原因写出来_3