(- 3 5 x 15 7 July 8, 2019 16 32 64 128 3 x 5 )= 7x 15 − 3x 1 5 x 2 3 )= 7 15 3 x 7 )+ 5 x 4 )= 15 4 3 x 5 2 x 7 15 15 8 3 6 x 5 7 X 3 x 5 80 x 2 25 15 7 1 3 x 5 = 7 15 3 x 5 )= 7x 15 4x 3 5 x 2 15 7 30 3 5x 1 5 x 15 )= 7 9 5 x )= 15 3 7x Is 3 x 5 x 7 15 a prime number 3 5 7 8 15 x 31 26 2 5 =( x 3 )/( 7x 15 7 3 5 x 14 15
