Factors

Enter **factor** expression in this form 3 15 45 SPACE separated.

Prime factors are the smaller numbers that can be multiplied together to make a bigger number.

For example, the prime factors of 12 are 2 ,2 and 3 because you can multiply 2, 2 and 3 together to get 12.

Let’s say we want to find the prime factors of the number 20.

Step 1: Start by dividing 20 by the smallest prime number, which is 2.

20 ÷ 2 = 10

Step 2: Now, we try to divide 10 by 2 again.

10 ÷ 2 = 5

Step 2: Now, we try to divide 5 by 5 itself.

5 ÷ 5 = 1

Step 3: We can’t divide 5 any further, so the prime factors of 20 are 2 and 2 and 5.

Therefore, for 20 we have 2, 2 and 5, because when you multiply 2 by 2 and 5 together, you get 20.

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