Which of the following shows a number as a product of prime numbers in exponential form? Choose all that apply.

Select one or more:
a.
32 · 5 · 7
b.
42 · 5 · 7
c.
33 · 8
d.
33 · 11

Question

Which of the following shows a number as a product of prime numbers in exponential form? Choose all that apply.

Select one or more:
a.
32 · 5 · 7
b.
42 · 5 · 7
c.
33 · 8
d.
33 · 11

anonymous · Answer

@bibby

phi · Answer

33 is 3*11
so c and d don't seem correct

phi · Answer

42 is 6*7 = 2*3*7

that is not promising.  so b is out.

phi · Answer

32 is 2*16 = 2*2*8  
and if we keep simplifying we get to
32= 2*2*2*2*2= $ 2^5$
that is a prime number with an exponent, so I would guess that is what they want
so choice a:  $ 2^5 \cdot 5 \cdot 7 $

phi · Answer

Though normally you would write the prime and its exponent, and not disguise it as e.g. 32

anonymous · Answer

thank you:) @phi