There are nine factors of 36: 1, 2, 3, 4, 6, 9, 12, 18 and 36. Because the number 36 has more than two factors, it is termed a composite number in mathematics.
Continue ReadingFactors are the positive, non-zero whole numbers which, when divided into the number in question, result in a number with no remainder. In the case of 36, for example: 36 ÷ 2 = 8.
A whole number greater than 1 which has only two factors (itself and 1) is termed a prime number. Examples of prime numbers include 3, 5, 7 and 11.
Factoring can also be applied to algebraic expressions. One example of the usefulness of an algebraic factor lies in the polynomial equation x^2 - x - 2 = 0. The factors of x^2 - x - 2 are (x-2) and (x+1), resulting in the simpler equations x-2=0 and x+1=0, yielding the solutions for the original equations, x=2 and x=-1.
The security of data is often ensured using cryptography keys which rely on methods that factor large whole numbers or use factorization. Data transmitted over the Internet is often secured using such public-key cryptography with reliance on advanced factoring methods. Coding also relies on factoring and is a necessary part of digital communication, including telephone, video and satellites.
Learn more about ArithmeticNumbers less than 100 that have exactly three factors are four, nine, 25 and 49. All of these numbers are squares of prime numbers, which means that their only factors are one, themselves and their square roots. Two squared is four, three squared is nine, five squared is 25 and seven squared is 49.
Full Answer >The factors of 90 are one, two, three, five, six, nine, 10, 15, 18, 30, 45 and 90. Factors are whole number that can divide into another number leaving no remainder (no decimals).
Full Answer >The prime factors of 30 are 2, 3 and 5. In addition to being the factors of 30, the numbers 2, 3 and 5 are also prime numbers, which means that they can only be divided evenly by either the number 1 or by themselves. The numbers 2, 3 and 5 are also the first three prime numbers.
Full Answer >The factors of eighty-seven are one, three, twenty-nine, and eighty-seven. Three and twenty-nine are both prime numbers in this case -- there are no other factors.
Full Answer >