they have to be composite
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Factorization into its smallest factors.
The prime factorization is... 2x2x2x2x2x5x5
Prime Factorization of 9 and 15The prime factorization of 9 is:3 X 3The prime factorization of 15 is:3 X 5
they have to be composite
Use the disibility rules
The divisibility rules will show that 53 is not divisible by anything other than 1 and itself. Since it is already prime, it doesn't have a factorization.
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3 x 3 x 31 = 279
they can help you by finding the two factors of the number given
The number can't be even(exepct for2 )because it would be divisable by 2.it can only have 2factors.
By the rules of divisibility, you know that 515 is divisible by 5. 515 divided by 5 is 103. Since both 5 and 103 are prime and can't be divided further, stop there. The prime factorization of 515 is 5 x 103.
With the common divisibility rules, you can quickly see that it is divisible by 5, and by 9 (3 x 3). If you divide 225 by each of these numbers, you should be able to get the remaining factors quickly, as well.
When asked for a factorization, it is generally understood to mean the prime factorization.
Factorization into its smallest factors.
Factorization of 150 = 2x3x5x5.