23 x 32
It is: 24*32 = 1584
24 x 3 = 48
It is: 2^2*3*5^3 = 1500
23 x 5 = 40 32 x 5 = 45
It is: 23*53 = 1000
22 x 131
31 x 291
23 x 29
22 x 7 = 28
3 x 5 x 5 = 75
3 x 13 = 39 No exponents are needed.
140 in exponential notation using prime factors is 2^2 x 5 x 7
64 = 26
23 x 5
23 x 32
It is: 24*32 = 1584