Question

(5/7)^-3 × (11/7)^11 = (11/7)^4x​

Answer 1

Answer:

Class 11

>>Applied Mathematics

>>Number theory

>>Fundamental theorem of Arithmetic

>>Explain why 7 x 11 x 13 + 1...

Question



Explain why 7 x 11 x 13 + 13 and 7 x 6 x 5 x 4 x 3 x 2 x 1 + 5 are composite numbers.

Medium

Open in App

Solution



Verified by Toppr

Given 7×11×13+13

=13×(7×11+1)=3×78 

This number is multiple of two integers.Hence it has more than two factors.Hence it is a composite number.

similarly in

7×6×5×4×3 ×2×1+5   

=5(7×6×4×3 ×2×1+1)=5×1009   

This number is multiple of two integers.Hence it has more than two factors.Hence it is a composite number.

Step-by-step explanation:

plz mark me as brainlist