Study guides

Q: How do you work out the prime factors of a number?

Write your answer...

Submit

Related questions

I assume you are asking how do you work out the factors of a prime number. A prime number by definition only has itself and 1 as factors.

Work out if they have any factors, other than the number 1 and themselves. If they do not they are prime.

Once all the prime factors of a number have been found, the number of factors the number has and what they are can be found. I'd be finding the prime factors first before finding all the factors of a number, so I'd rather find all the prime factors as it means I can stop before I have to do more work in finding all the factors.

Prime numbers have two factors. Prime squares have three factors. Square numbers have an odd number of factors but that number varies.

All numbers have factors. Some factors are prime numbers. These are known as prime factors. The set of prime factors is a subset of the set of factors for any given number.

You cannot list all the potential prime factors. Any prime number can be a prime factor. There are an infinite number of prime numbers, so there are an infinite number of potential prime factors. If given a specific number, the prime factors for it can be listed.

Basically, a factors of a larger number are the factors which theoretically 'make up' the number. Factors are the prime numbers when multiplied together, give the final product. e.g. 2x2x2x2x2 are the prime factors of 32 as 2 (prime) is the simplest form. However, when the number for example is 7, there is only one factor as 7 is a prime number itself.

There is not such a thing as a composite prime number. A prime number has exactly two factors. A composite number has more than two factors.

Well, the factors of a prime number is that they only have two factors.

A prime number has two factors: one and the number itself. A prime number does not have any proper factors.

Whether a number is a prime number or not is determined by its factors. It is a prime number if its only factors are 1 and itself.

Prime numbers have as factors the number 1 and their own number. Example: 37 is a prime number because its only factors are "1" and "37". If the prime number had further factors, it would no longer be prime.

A number is prime when it only has one and itself as factors is prime. Therefore, to tell if a number is prime simply find it's factors. If it has more than two factors than it is not a prime number.

17 is a prime number because it has only two factors which are itself and one.

The best way to tackle this is to take the largest 3 digit number (999) and work out its prime factors. You can then work down until you get one with exactly five prime factors. 999 is 3x3x3x37, 998 is 2x499, 997 is prime, 996 is 2x2x3x83, 995 is 5x199, 994 is 2x7x71, 993 is 3x331, 992 is 2x2x2x2x2x31, 991 is prime, 990 is 2x3x3x5x11. That is the first we came across with five prime factors. Therefore the largest 3 digit number with exactly five prime factors is 990.

The prime factors of a squared number are the prime factors, if any, of its square root.

A prime number is any number that only has one and itself as factors. Threfore, any number taht has more than two factors is not prime. Check the the factors of a number to tell if it is prime or not.

Technically, you can't. You can find the prime factors of a number. If you compare those prime factors to the prime factors of another number, you will see if they have any prime factors in common.

1151 is a prime number.

A prime number is any number that only has one and itself as factors. Threfore, any number taht has more than two factors is not prime. Check the the factors of a number to tell if it is prime or not.

A prime number is any number that only has one and itself as factors. Therefore, any number that has more than two factors is not prime. Check the the factors of a number to tell if it is prime or not.

A prime number is any number that only has one and itself as factors. Threfore, any number taht has more than two factors is not prime. Check the the factors of a number to tell if it is prime or not.

A prime number is any number that only has one and itself as factors. Therefore, any number that has more than two factors is not prime. Check the the factors of a number to tell if it is prime or not.

A prime number only has two factors. If the number you're looking at has more than two factors, it is not prime.

No difference. Once you've found the factors of a number, the prime numbers on that list are the prime factors.