3 5 x 13 4 July 8, 2019 16 32 64 128 3 5 x )+ 13 4 3x 8 3 5 х )+ 13 4 3х 8 3 5 12 х 4 13 18 5 3 x )-( x 13 )= 4 7 x 2 x 3 5 2x 13 4 5 3 13 x 7 5 13 4 8 4 2 x 3 )= 13 5 x 4 4x 3 5 4x 3 2 x 13 )/ 15 3 x 5 x 13 x 46 23 3 x 5 x 13 x 46 23 is a composite number 3 x 5 )+ 42 8x 13 13 3 5 x 11 3 4 5 13 x 4 12 x 3 11 3 x 4y 7 5 x 6y 13
