To do prime factorization, determine the smallest prime numbers that can divide evenly into the whole number. Use a factorization pyramid to help you visualize how prime numbers divide into a number. More »

The prime factorization of 72 is 23x 32, or 2 x 2 x 2 x 3 x 3. The prime factorization of a number involves determining the factors of a number that are also prime numbers and multiply together to equal the original numb... More »

The prime factorization of 100 is 2^2 x 5^2, or 2 x 2 x 5 x 5. One hundred is considered a composite number because it is a positive integer divisible by at least one positive number other than 1 and 100 (itself). More »

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. More »

The prime factorization of 24 is 2 x 2 x 2 x 3. Thus, the number 24 has only 2 prime factors, 2 and 3. Prime factors of 24 are numbers that divide 24 exactly without leaving a remainder and are prime numbers as well. More »

The prime factorization of 38 is 19 multiplied by 2. Prime factorization involves finding which prime numbers may be multiplied together to yield a particular number. Prime numbers are numbers greater than one that are o... More »

The prime factorization of 42 is 2 x 3 x 7. The prime factors of a number are numbers that are both factors and prime at the same time. More »