40 = 1 x 40, 2 x 20, 4 x 10, or 5 x 8. Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40. Prime factorization: 40 = 2 x 2 x 2 x 5, which can also be written 2鲁 x 5.

What is 40 as a product of prime factors?

This can be written in index form as 2 3 脳 5 . This answer can be checked by making sure 2 脳 2 脳 2 脳 5 is equal to 40. 2 脳 2 脳 2 脳 5 = 40 , so this answer is correct.

What is factor tree?

Factor trees are a way of expressing the factors of a number, specifically the prime factorization of a number. Each branch in the tree is split into factors. Once the factor at the end of the branch is a prime number, the only two factors are itself and one so the branch stops and we circle the number.

What is the factor tree of 420?

Yes, 101 + 103 + 107 + 109 = 420. Since 20 脳 21 = 420, we know that 420 is the sum of the first 20 EVEN numbers. Thus, 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 + 22 + 24 + 26 + 28 + 30 + 32 + 34 + 36 + 38 + 40 = 420.

What is the factor tree of 45?

Prime factorization of 45 = 1 脳 3 脳 3 脳 5. Therefore, Prime factors of 45 are 1, 3, and 5.

How many positive factors of 40 are there?

Detailed Solution

鈭 40 has 8 positive factors.

What is factor tree 30?

Factor Tree. The number 30 can be written as 6 x 5. 6 can then be written as 2 x 3. A factor tree representing this is shown below. Although the number 30 can be factored different ways, the result is always has one 2, one 3 and one 5.

What is an example of a factor tree?

In other words, a factor tree is a tool that breaks down any number into its prime factors. For example, if we’re looking at 2 * 3 = 6, then 2 and 3 are factors of 6. But, we could also say that 1 * 6 = 6. So 6 has four factors: 1, 2, 3, and 6.

How do you solve factor trees?

Pick any pair of factors for the number you’re working with. To qualify as a pair of factors, the product of the two numbers must equal your original number when multiplied together. These factors will form the first branches of your factor tree. You can pick any two factors.