Question

TIm chu so tan cung

3¹⁰⁰¹.7¹⁰⁰².13¹⁰⁰³

Answer 1

3¹⁰⁰¹.7¹⁰⁰².13¹⁰⁰³

= 3¹⁰⁰⁰.3.7¹⁰⁰⁰.7².13¹⁰⁰⁰.13³

= (3⁴)²⁵⁰.3.(7⁴)²⁵⁰.49.(13⁴)²⁵⁰.(...7)

= (...1)²⁵⁰.3.(...1)²⁵⁰.49.(...1)¹⁵⁰.(...7)

= (...1).3.(...1).49.(...1).(...7)

= (...9)

Answer 2

3¹⁰⁰¹.7¹⁰⁰².13¹⁰⁰³

= 3¹⁰⁰⁰.3.7¹⁰⁰⁰.7².13¹⁰⁰⁰.13³

= (3⁴)²⁵⁰.3.(7⁴)²⁵⁰.49.(13⁴)²⁵⁰.(...7)

= (...1)²⁵⁰.3.(...1)²⁵⁰.49.(...1)¹⁵⁰.(...7)

= (...1).3.(...1).49.(...1).(...7)

= (...9)