How to Find a Divisibility Rule for Composite Integers?

Answer This method for divisibility is called the CIE. Need to know how to find the divisibility rule for 15? Well, let's use the numbers 15, 12, 32, and 24.

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How to Use the Divisibility Rules to Find the Prime Factorization of a Number?

Prime numbers have a special place in number theory. There is no formula to predict a prime number, and many appear in pairs as twin primes with a difference of two -- 3 and 5, 5 and 7, 11 and 13, ... Read More »

How to Find the Mean of Integers?

When you talk about the number of apples you want to buy for the week, gas mileage for your new hybrid, or points scored in the big weekend game, you are dealing with integers. Integers are posit... Read More »

How to Find Consecutive Integers?

Consecutive numbers are the integers in sequence -- starting anywhere and going for as long as you want. In word problems, you do not need a variable for each of the consecutive numbers. If N is th... Read More »

How to Find & Describe Consecutive Integers?

Consecutive integers come in a normal sequence, starting anywhere, continuing for any length and usually -- but not necessarily -- stopping. Examples include 8, 9 and 10 or 37, 38, 39, 40 and 41. I... Read More »