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2 x 3 x 5 x 7
2 x 3 = 6
6 x 5 = 30
30 x 7 = 210
2 x 3 x 5 x 7 = 210
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∙ 9y ago
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How many factors has 17?
all numbers can be broken down into its prime factors so if you want a number with 17 factors all you have to do is multiply the first 17 prime factors together 2*3*5*7*11*13*17*19*23*29*31*37*41*43*47*53*59=1922760350154212639070
What is a factor of 44?
To find the factors of a number you first need to break it down into its prime factors. In this case, 44 is even so you can divide by 2. Do this and you get 22, which is also even. Divide by 2 again and you get 11 which is prime. Thus the prime factors of 44 are 2, 2 and 11. In order to find all the factors (other than 1) you multiply any combination of these prime factors together. In this case, the factors of 44 work out as: 1, 2, 4, 11, 22 and 44.
How does finding the prime factorization of a group of numbers help you to find their greatest common factor?
If you take all the common prime factors between numbers and multiply them it will give you the gcf.
When all the prime factors are odd the number is odd?
odd and prime are two different things ,but odd numbers can be prime or composite just depends if you can multiply it with another number except 1 here's an example 7 ( 7 is odd and is prime because it has 2 factors "7 & 1" 15 is odd ,but not prime because 5x3 is 15 and 15x1 is 15 5 and 3 are factors of 15 so all odd numbers are not prime all even numbers are composite except the number 2.
What is the least common multiple of 90 and 60?
To determine the least common multiple of two numbers, determine the prime factors of both numbers. Then, determine the prime factors they have in common. Multiply all their prime factors together (in other words, multiply both numbers together) and divide by the prime factors they have in common (in other words, their greatest common factor). The prime factors of 60 are 2, 2, 3, and 5. The prime factors of 90 are 2, 3, 3, and 5. The prime factors in common are 2, 3, and 5, so the greatest common factor is 2 x 3 x 5 = 30. The least common multiple is thus (2 x 2 x 3 x 5) x (2 x 3 x 3 x 5) ÷ (2 x 3 x 5) or 60 x 90 ÷ 30 = 180. A similar way to use the prime factors is to take the prime factors of one number and cross out any that appear in the other number, then multiply the remaining ones together to calculate the least common multiple. 60 has 2, 2, 3, and 5 90 are 2, 3, 3, and 5 The least common multiple of 60 and 90 is 2 x 2 x 3 x 5 x 3 = 180.
What least number multiply to 2306 to make it perfect square?
You need to factor it, into prime factors. Then, for every prime factor that appears an ODD number of times, you need to multiply 2306 by this prime factor. Multiply all such prime factors together to get your answer.
How do you know when you've found all the factors of a number?
If you multiply all the prime factors you've found together and the result is the number, you have found all of them.
Will you get the same number of factors if you multiply a prime number by itself?
All prime squares have three factors.
How do you know a number if its factors are given?
There are two ways in which the factors can be given. You are given all the prime factors (and their multiplicity). In that case simply multiply them all together. Or You are given each factor. In this case, the biggest of these is the number.
What is the LCM of 28 and 21?
To determine the least common multiple of two numbers, determine the prime factors of both number. Then, determine the prime factors they have in common. Multiply all their prime factors together (in other words, multiply both numbers together) and divide by the prime factors they have in common (in other words, their greatest common factor). The prime factors of 21 are 3 and 7. The prime factors of 28 are 2, 2, and 7. The prime factors in common are a single 7. Therefore, the lowest common multiple is 21 x 28 ÷ 7 = 84
Are there any prime factorizations for 52?
2x2x13 these are all of the prime factors that multiply to equal 52
What is the prime factoisatin of 90?
2 x 3 x 3 x 5The prime factorization simply means a list of all the factors (numbers that multiply together to make the number) that are prime.
I am thinking of a number. It is less than 20. It is an odd number. It has two different prime factors. What number am I thinking of?
The answer is 105 because 3,5, and 7 are all prime factors and when you multiply the numbers together it comes out to be 10
Do all proper factors have some factors that you can multiply to get another proper factor?
No. Some proper factors are prime.
Are prime factors and prime factorization the same?
No. Prime factors are the numbers that make up other numbers, but they have to be prime. Prime factorisation is the process of finding the prime numbers that create a number. This is when you multiply the prime numbers together and the product is the original number. For example: 20 5x4 5x2x2 This process is called prime factorisation. In this case, the prime numbers are 2, 2, and 5.
What is a step diagram for prime factors?
it is a way of finding out all of the prime numbers that you have to multiply to equal the desired number.
Odd number that is less than 160 and has 3 different prime factors?
The answer is 105 because 3,5, and 7 are all prime factors and when you multiply the numbers together it comes out to be 105 witch is lower than 160 and is an odd number.
