[DOC] [TLE] Table of prime factors - Wikipedia [PAR] The tables contain the prime factorization of the natural numbers from 1 to 1000. 
When n is a ... The first: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23 (sequence 
A005408 in the OEIS). ... A prime power has only one prime factor. ... A number 
where some but not all prime factors have multiplicity above 1 is neither square-
free nor... [DOC] [TLE] Common Factors - Fact Monster [PAR] Factors that two numbers have in common are called the common factors of 
those numbers. Example: What are the common factors of 20 and 25? The factors 
of 20 are 1, 2, 4, 5, and 20. ... The common factors of 15 and 30 are 1, 3, 5, and 
15. ... the factorsprime or notto find the single highest one they have in 
common,... [DOC] [TLE] Prime and Composite Numbers - Math Goodies [PAR] If the number has only two factors, 1 and itself, then it is prime. ... Please note that 
each range of numbers given in Examples 3, 4 and 5 below are inclusive. ... 
factors of 15: 1 x 15, 3 x 5, 15 is composite ... Solution 3: I divided the number 31 
by all numbers between 1 and 31 and found no factors other than one and thirty-
one. [DOC] [TLE] Prime numbers and prime factorization - A complete course in ... [PAR] Learn to factor a number as a product of prime numbers. ... As for 10 itself, we are 
not interested that 10 is equal to one 10; we want to ... The square numbers are 
the numbers we get by squaring a number: 1, 4, 9, 16, 25 ... However, 15 = 3  5. [DOC] [TLE] inequality - Is a prime factor of a number always less than its square ... [PAR] Sep 10, 2011 ... I was wondering if there is any mathematical proof that no prime p exists for the ... 
15=3 * 5 and 5 is a prime certainly larget than the square root of 15! ..... that n , in 
fact at least one factor would be less than n if n is not a prime number. .... But one 
piece could still become greater than sqrt like in case 4 above [DOC] [TLE] Factors and Primes - Developmental Math Topic Text [PAR] Recognize (by using the divisibility rule) if a number is divisible by 2, 3, 4, 5, 6, 9, 
or 10. ... Determine whether a number is prime, composite, or neither. ... When 
one number can be divided by another number with no remainder, we say the .... 
2  15. 3  10. 5  6. Is that it? Not quite. All natural numbers except 1 also have 1... [DOC] [TLE] Factoring Numbers - Purplemath [PAR] For instance, factors of 15 are 3 and 5, because 35 = 15. Some numbers have 
more than one factorization (more than one way of being factored). ... or 34. A 
number that can only be factored as 1 times itself is called "prime". ... For instance
, even though 22 = 4, and even though 4 is a divisor of 8, 4 is NOT in the PRIME
... [DOC] [TLE] Factoring - Factors and multiples - In Depth - Math.com [PAR] A factor is simply a number that is multiplied to get a product. ... 45 --> 1, 3, 5, 9, 
15, 45 ... A prime number has only two factors, one and itself, so it cannot be 
divided ... For example, 4 equals 2 times 2, 6 equals 3 times 2, 8 equals 4 times 2
, and so ... Since 21 is not divisible by 2, we try dividing by 3, the next biggest 
prime... [DOC] [TLE] What are the prime factors of 30? | Reference.com [PAR] In addition to being the factors of 30, the numbers 2, 3 and 5 are also prime 
numbers, ... states

Question: Of 3, 4 or 5, the one that's not a prime factor of 15
Answer: 4