504 can be expressed as a product of primes as	Choose the most appropriate option:
A) 2 × 2 × 3 × 3 × 7 × 7
B) 2 × 3 × 3 × 3 × 7 × 7
C) 2 × 2 × 2 × 3 × 3 × 7
D) 2 × 3 × 3 × 3 × 3 × 7
E) None of these
Explanation:   It is clear that 504 = 2 × 2 × 2 × 3 × 3 × 7   Answer: Option 2 × 2 × 2 × 3 × 3 × 7
<result>C</result>
504 can be expressed as a product of primes as