Table of Contents
What are the Factors of 40?
The factors of the number 40 are 1, 2, 4, 5, 10, 20, and 40.
Factors by Division Method
To find the factors of the number 40 by the division method, divide 40 by each number from 2 to 10. The factors are 2, 4, 5, 8, 10, and 20.
Divisibility Method
The divisibility method is a way of checking to see if a number is divisible by another number. The divisibility method works by dividing the number to be checked by the number to be tested for divisibility. If the result of the division is a whole number, then the number is divisible by the number that was tested.
Steps to find Factors of 40 by Divisibility Method
- 40 can be divided by 2, 4, 5, 10, 20, and 40.
- Start by dividing 40 by 2.
40 ÷ 2 = 20. - 20 is a factor.
- Next, divide 40 by 4.
40 ÷ 4 = 10. - 10 is a factor.
- Next, divide 40 by 5.
40 ÷ 5 = 8. - 8 is a factor.
- Next, divide 40 by 10.
40 ÷ 10 = 4. - 4 is a factor.
- Lastly, divide 40 by 20.
40 ÷ 20 = 2. - 2 is a factor.
Prime Factors of 40
The prime factors of a number are the prime numbers that divide that number without a remainder. For example, the prime factors of 15 are 3 and 5. 3 and 5 are the only prime numbers that divide 15 without a remainder, so they are the prime factors of 15.
Prime factors of the number 40 = 2 & 5
Prime Factorization of 40
In mathematics, prime factorization is the decomposition of a number into a product of prime numbers. For example, the prime factorization of 60 is 2 × 2 × 3 × 5.
The prime factorization of a number is the easiest way to find the largest prime factor of that number. The largest prime factor is the prime factorization of a number that is larger than any other prime factor in the prime factorization.
Prime Factorization of 40 = 2 x 2 x 2 x 5
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