Evaluate:
By prime factorization method we get;
2
8000
4000
2000
1000
500
250
5
125
25
1
8000 = 2 ×2 ×2 ×2 ×2 ×2 ×5 ×5 ×5
= (2 ×2 ×2) × (2 ×2 ×2) × (5 ×5 ×5)
= 23 × 23 × 53
= (2 ×2 ×5) = 20