Question

40. The number 3^13 - 3^10 is divisible by
O (a) 3, 13,5
O (b) 3,10
O (c) 2, 3, 13
O (d) 2, 3, 10​

Answer 1

Step-by-step explanation:

3^13 - 3^10

= 3^10(3^3-1)

= 3^10(27-1)

= 3^10(26)

= 3^10×2×13

so, 3^13 - 3^10 is divisible by 2, 3,1 3

c) 2, 3, 13