Question

Write the smallest 4-digit number and show its prime factor is at ion

Answer 1

Answer:

Smallest 4-digit number =  \textbf{1000}  

“first find the prime factors of 1,000”

“Kindly refer to the attachment”

Express 1,000 as the product of it's prime factors —

1000 = 2×2×2×5×5×5

Answer 2

Question:

Write the smallest 4-digit number and show its prime factorisation.

Answer:

• 2 ×2×2×2×5×5

Solution:

Smallest 4-digit number = 1,000

Prime factorisation of 1,000 = ?

$\begin{array}{r | I} 2 & 1000\\ \cline{2-2} 2 & 500 \\ \cline{2-2} 2 & 250 \\ \cline{2-2} 2 & 125 \\ \cline{2-2}5 & 25 \\ \cline{2-2} & 5 \end{array}$

Prime factorisation of 1,000 =

• 2×2×2×2×5×5