Explanation
to make a prime factorization, we need rewrite the number (20) as the product of primer number
so
Step 1
remember the prime numbers are special numbers, greater than 1, that have exactly two factors, themselves and 1
[tex]\text{prime numbers=}\lbrace2,3,5,7,11,,,\rbrace[/tex]a) divide the number by the first prime number(2)
then
[tex]20=2\cdot\frac{20}{2}=2\cdot10[/tex]again, divide 10 by 2
so
[tex]\begin{gathered} 20=2\cdot10 \\ 20=2\cdot2\cdot5 \\ \end{gathered}[/tex]as we can see, now we have the number 20 as the producto of 2 prime numbers
[tex]20=2^2\cdot5[/tex]I hope this helps you
