Question

Find the unit digit of 3^6 *4^7 *6^3 *7^4 *8^2 *9^5

Answer 1

Step-by-step explanation:

Multiply them all with each other like this

3*3*3*3*3*3*4*4*4*4*4*4*4*6*6*6*7*7*7*7*8*8*9*9*9*9*9= 2.34091683e19

ok

Answer 2

Answer:

The correct answer = 6

Given problem:

Find the unit digit of 3⁶ × 4⁷ ×  6³ × 7⁴ × 8² × 9⁵

Explanation:

given number is 3⁶ × 4⁷ ×  6³ × 7⁴ × 8² × 9⁵

⇒  3⁶ × 4⁷ ×  6³ × 7⁴ × 8² × 9⁵

⇒ 729 × 14384 × 216 × 2401 × 64 × 59049

to find the unit digit in given number multiply each unit digit number in given number

unit digits in given number

⇒ 729 × 14384 × 216 × 2401 × 64 × 59049  

⇒ 9 × 4 × 6 × 1 × 4 × 9 = 7776

Therefore unit digit of the  3⁶ × 4⁷ ×  6³ × 7⁴ × 8² × 9⁵  = 6