Bonjour,
a. 2^ x 13 x 26 =
2² *13 * 2*13 =
2³ *13² =1 352
b. 3 x 15 x 97 =
3*3 *5*97 =
3² *5*97 =4 365
c. 7 x 3^ x 9 x 21 =
7*3² *3*3*3*7 =
3^5 *7² = 11 907
d. 23 x 25 x 25 =
23 *5*5*5*5 =
23 * 5^4 = 14 375
e. 14 x 7^ x 61 =
2*7*7²* 61 =
2*7³ *61 = 41 846