no
even numbers (apart from 2) are not prime
919 and 929 are prime
926%
926 = 1 x 926, 2 x 463.
.926 grams
It is: 713+926 = 1639
16.8364
463
926 x 7 = 6482
926 + 313 = 1239
How about 927 minus 1 = 926 as one example
500 to 926 is an 85.2% increase.
268
926 is an integer and there is not a sensible way to write it as a fraction.