Write the number 20 as a product of prime factors.
20=___
20 = 2 x 2 x 5
To write the number 20 as a product of prime factors, we need to break it down into its prime factors until we have only prime numbers.
First, we divide 20 by the smallest prime number, which is 2. 20 ÷ 2 = 10. So, we have one factor of 2.
Next, we divide the result, 10, by the next smallest prime number, which is also 2. 10 ÷ 2 = 5. Now we have one more factor of 2, and the remaining number, 5, is a prime number.
So, the prime factorization of 20 is 2 × 2 × 5.
Therefore, 20 = 2 × 2 × 5.
To write the number 20 as a product of its prime factors, we need to find the prime numbers that divide evenly into 20.
To do this, we can start by dividing 20 by the smallest prime number, which is 2.
20 ÷ 2 = 10
Now we have 10 as the result. We can continue dividing 10 by 2:
10 ÷ 2 = 5
Now we have 5 as the result. Since 5 is a prime number, we have found all the prime factors of 20.
Therefore, the prime factorization of 20 is:
20 = 2 × 2 × 5
So, 20 can be expressed as the product of its prime factors: 2 × 2 × 5.