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www.reference.com/article/factors-40-30192da1c605461f

The factors of 40 are 1, 2, 4, 5, 8, 10, 20 and 40. These are the numbers that when multiplied together give the product of 40—1 x 40 = 40, 2 x 20 = 40, 4 x 10 = 40 and 5 x 8 = 40.

www.reference.com/article/prime-factorization-40-f2d0ec99f3293d26

The prime factorization of 40 is 40 = 2 x 2 x 2 x 5. To find the prime factorization of any number, x, one must determine which prime numbers multiple together to equal x.

www.reference.com/article/prime-factors-40-55f837fcd19d34f9

The prime factors of 40 are 2 x 2 x 2 x 5. Prime factors are prime numbers, which are only divisible by 1 and themselves. The only even prime number is 2, and it is a factor of all even numbers.

www.reference.com/article/greatest-common-factor-numbers-16-40-64135f6b95775f37

Eight is the greatest common factor for the numbers 16 and 40. The factors of a particular number are those numbers that divide into it evenly, leaving no remainder. The greatest common factor between two numbers is the highest number that divides evenly into both of th...

www.reference.com/article/number-between-30-40-only-one-itself-factors-99b9b48a53da0cbc

The numbers between 30 and 40 whose only factors are one and themselves, also called prime numbers, are 31 and 37. Prime numbers are useful in generating numerical passwords or codes that are difficult to crack.

www.reference.com/article/30-percent-40-7c68389bfff1861f

Thirty percent of 40 equals 12. This can be calculated by multiplying 30/100 x 40. It can also be found by multiplying 0.3 and 40. In both instances, the answer is 12.

www.reference.com/article/40-percent-off-35-17ca323663c3806e

A $35 item that is marked 40 percent off has a final cost of $21. The markdown is calculated on its own before it is subtracted from the original price to determine the final total.