Posted by Leslie on Friday, December 30, 2011 at 10:26pm.
For small numbers, just try every prime less than the square root. Why stop there, because if there are two factors, and one is greater than the square root, the ther must be less than the square root, and you will already have tried it.
For example try 2 as a factor of 84.
84 = 2*42
Now, try 2 as a factor of 42.
84 = 2*2*21
Since 21 is odd, it will have no even factors. So, try 3, the next prime.
84 = 2*2*3*7
Since 7, the largest remaining factor, is prime, we're done.
Related Questions
math - You can use the prime factorization of a number, written as the product ...
math - You can use the prime factorization of a number, written as the product ...
Math - Plz help dont know how to do this question. Write number 68 as a product ...
Math - There are 13 flavbors at a local ice cream parlor. Is the number 13 a ...
math - You can use the prime factorization of a number, written as the product ...
Math. - 1. Tyler has 45 baseball cards and 54 basketball cards. He organized ...
Math I need help Ms. Sue please answer! - 6th Grade Math: Write 144 as a product...
math - WRITE THE NUMBER 99 AS A PRODUCT OF PRIME FACTORS
Math - If a composite number has the first five prime numbers as factors, what ...
math - 1) Write 2^2 * 3 * 5 as a natural number? I get 60 is it right or should ...
For Further Reading
