Eight numbers are factors of 40, including 1, 2 and 4. Other factors of 40 are 5, 8, 10, 20 and 40.
The factors of a number are those that divide evenly into the number in question. To factor a number, it is expressed as a product of smaller numbers which is referred to as factorization. For example, factoring the number 12 would result in 3 x 4, but it can be further factored as 12 = 2 x 2 x 3. If a number can not be factored any further, it is known as a prime number. The greatest common factor is the greatest number that two numbers have in common. For instance, the greatest common factor of 16 and 12 is 4 because it is the largest number that can be evenly divided into both numbers.
Learn MoreThe factors of 46 are 1, 2, 23 and 46, as well as -1, -2, -23 and -46. Factors are numbers that are multiplied to obtain another number. Negative numbers can also be factors, because a negative number times another negative number will produce a positive number.
Full Answer >The full prime factorization of 64 is 2 x 2 x 2 x 2 x 2 x 2. The prime factorization of a number is computed by dividing the number by a small prime number, such as 2, 3 or 5, until the final value is also prime. Prime factorizations are commonly taught in school through the use of the factor tree method.
Full Answer >The factors of 99 are 1, 3, 9, 11, 33 and 99. These are the numbers that when multiplied together give the result of 99. The following number pairs have a product of 99: 1 x 99, 3 x 33, and 9 x 11.
Full Answer >The number 11 only has two factors, which are 1 and 11. The number 11 is an example of a prime number, which is any number that only has two factors, 1 and itself.
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