Question

Which is greater and by how much$?$

$2^7$ or $7^2$

Answer 1

Given numbers are $2^7$ and $7^2$

$2^7=2\times 2\times 2\times 2\times 2\times 2\times 2$

$=128$

$7^2=7\times 7$

$=49$

Difference between them is $=128-49$

$=79$

Hence, $2^7$ is greater than $7^2$ by $79$