Question #cccd6

1 Answer
Nov 21, 2017

See explanation.

Explanation:

You can do this by dividing the number by increasing prime numbers:

#620 -: color(red)(2) = 310#

#310 -: color(red)(2) = 155#

#155 -: color(red)(5)=31#

#31# is a prime number, so the decomposition is:

#620=2xx2xx5xx31=2^2xx5xx31#