Question 362561
1)
{{{3*3 = 3^2}}}
{{{5*5*5*5 = 5^4}}}
{{{7*7 = 7^2}}}
{{{3*3*5*5*5*5*7*7 = 3^2*5^4*7^2}}}
2)
{{{2*2*2*2*2*2*2*2*2 = 2^9}}}
3)
{{{3^4 = 3*3*3*3}}}