Question

If a number ends with 7 then its cube always ends with ____.​

Answer 1

Answer:

it's 3

Step-by-step explanation:

7^3= 343

17^3= 4913

27^3= 19683

Answer 2

Explanation:

$\mathsf{7^3 \:is\:343,\:which\:can\:be\:seen,\:obviously\:ends\:with\:3.}$

$\textsf{Hence, for any number that ends with 7,}$

$\mathsf{its\:cube\:will\:be\:ending\:with\:3.}$

$\mathsf{For\:example,\:17^3=4913.}$

Answer: 3