The prime factorization of 36 can be written as 2x2x3x3. Numbers greater than 1 that can only be divided by themselves and 1 are called prime numbers. Each non-prime number has a unique prime factorization.
The best way to find the prime factorization of an even number is to first divide the number by 2. When dividing 36 by 2, the result is 18. This is not a prime number, so further divide by 2 to get 9. The result is now 2x2x9. The number 9 is not a prime and is also not even, so divide by the next prime number, 3. This results in 3. The prime factorization of 36 is now 2x2x3x3, which are all prime numbers.
Learn MoreThe Roman numeral XV is the equivalent of the number 15. In the Roman numeral system, letters represent numerals. The basic letters and the numerals they represent are I equals one, V equals five, X equals 10, L equals 50, C equals 100, D equals 500, and M equals 1,000.
Full Answer >Some math trivia examples include these facts: The middle digit of a three-digit answer to the multiplication of any number by 11 is the sum of the other two digits, or 21 x 11 = 231, while 2 + 1 = 3. The sum of the digits of the result of multiplying a number by 9 is always 9; 2 x 9 = 18, while 1 + 8 = 9.
Full Answer >Roman numerals pertain to any of the symbols used in the Roman numeral system comprising the letters I, V, X, L, C, D and M, with corresponding values of 1, 5, 10, 50, 100, 500 and 1,000, respectively. These base letters are used in combination with each other in writing down numbers. Basic combinations follow certain rules in the additive and subtractive system of Roman numerals.
Full Answer >The number 57 has four factors. These are 1, 3, 19 and 57. Factors of a number are numbers that can be multiplied to equal the given number.
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