Last updated on May 26th, 2025
Factors are the ‘building blocks’ of a number. They are the numbers that can be multiplied together to reach the number you started with. 330 is an interesting number. It is large enough to make you think, but simple enough to learn if you know a few tricks. Let’s dive into it!
Factors are whole numbers that, when multiplied, the product is equal to 330.
330 is not a prime number, its factors are 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165 and 330. For every factor, there is a corresponding negative factor, for 330, the negative factors -1, -2, -3, -5, -6, -10, -11, -15, -22, -30, -33, -55, -66, -110, -165 and -330.
There are various methods we apply to find the factors of any number. Few of them are listed here; multiplication method, division method, prime factors and prime factorization and factor tree method. These are explained in detail below, let’s learn !
Step 1: Find all pairs of numbers whose product is 330.
Step 2: All the pairs found represent the factors of 330.
330 is not a prime number. The pair of numbers whose product is 330 is;
1×330=330
2×165 = 330
3×110 = 330
5×66=330
6×55=330
10×33=330
11×30=330
15×22=330
The factors of 330 are 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165 and 330.
Step 1: Start by dividing 330 with the smallest number, and check the remainders.
Step 2: 330 is not prime, therefore the divisors it has are 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165 and 330. Any number that is further checked for divisibility leaves behind a remainder.
The factors of 330 are 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165 and 330.
— 330 is not a prime number.
— The prime factorization of 330 is 2×3×5×11.
— Factors of 330 are 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165 and 330.
— In this method, we make branches that extend from the number to express a number as the product of its factors.
— In case of 330, branch will be extended as the number is prime factorized as 2×165 → 3×55 → 5×11. 11 is a prime number and cannot be factored further.
We all make mistakes when it comes to finding factors, especially when it comes to numbers like 330. Don’t worry, it is a part of learning. Here are a few common slip-ups we may make, along with tips to avoid them.
How many factors does 330 have?
First, find the prime factorization of 330:
330=2×3×5×11.
Using the formula for finding the total number of factors, add 1 to each of the exponents and multiply:
(1+1)×(1+1)×(1+1)×(1+1)=2×2×2×2=16
So, 330 has 16 factors.
To find the number of factors, we add 1 to each exponent in the prime factorization and multiply the results. This gives the total count of factors for the number 330.
Find the sum of all the factors of 330.
First, use the prime factorization:
330=21×31×51×111
Apply the formula to find the sum of factors by adding one to each power and summing each series:
(20+21)×(30+31)×(50+51)×(110+111)
=(1+2)×(1+3)×(1+5)×(1+11)
=3×4×6×12=864
So, the sum of all factors of 330 is 864.
Using the formula for the sum of divisors of a number, we take each prime factor, raise it to each power from 0 up to the exponent, and sum the terms. Then, we multiply these sums to get the total sum of all factors.
What are the common factors of 330 and 198?
Find the factors of 330: 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, and 330.
Find the factors of 198: 1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, and 198.
Identify the common factors: 1, 2, 3, 6, 11, 22, 33, and 66.
The common factors of 330 and 198 are 1, 2, 3, 6, 11, 22, 33, and 66.
Common factors are shared divisors between two numbers. We find each number’s factors and then pick the ones that appear in both lists.
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
: She loves to read number jokes and games.