To find the prime factorization of 20570, we will break it down step by step.
### Step 1: Start with the number 20570
We need to find the prime factors of 20570.
### Step 2: Divide by the smallest prime number
The smallest prime number is 2. Since 20570 is even, we can divide it by 2.
\[
20570 \div 2 = 10285
\]
### Step 3: Check if the result is divisible by 5
Next, we check if 10285 is divisible by 5 (the next smallest prime). Since it ends with a 5, we can divide it by 5.
\[
10285 \div 5 = 2057
\]
### Step 4: Check for divisibility by 11
Now we need to factor 2057. We can check for divisibility by 11.
\[
2057 \div 11 = 187
\]
### Step 5: Continue factoring 187
Next, we factor 187. We can divide it by 11 again.
\[
187 \div 11 = 17
\]
### Step 6: Factor 17
Now we have 17, which is a prime number.
\[
17 \div 17 = 1
\]
### Step 7: Compile the prime factors
Now we can compile all the prime factors we found:
- From step 2: 2
- From step 3: 5
- From steps 4 and 5: 11 (which we found twice)
- From step 6: 17
Thus, the prime factorization of 20570 is:
\[
2 \times 5 \times 11^2 \times 17
\]
### Final Answer
The prime factorization of 20570 is \( 2 \times 5 \times 11^2 \times 17 \).
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