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How you know that 2 is a prime factor?
2 is a prime number because its only factors are one and itself. Since 2 is a prime number, if it is a factor of your number, it is a prime factor.
How do you know 25 and 36 are relatively prime?
25 and 36 are relatively prime because they both share 1 as a factor, but no other factor. As their only common factor is 1, they are relatively prime. Neither is a prime number itself, but it is about the common factors, so in relation to each other, they are relatively prime.
How do you know when you have found the longest factor string for a number?
All of the factors are prime.
What is a factor tree and how do youknow when a factor tree is complete?
When the bottom branch consists entirely of prime numbers.
How to get largest prime factor?
All composite numbers can be expressed as unique products of prime numbers. This is accomplished by dividing the original number and its factors by prime numbers until all the factors are prime. A factor tree can help you visualize this. Example: 210 210 Divide by two. 105,2 Divide by three. 35,3,2 Divide by five. 7,5,3,2 Stop. All the factors are prime. 2 x 3 x 5 x 7 = 210 That's the prime factorization of 210. The largest of those numbers is the largest prime factor.
How do you know immediately that 2056 is not a prime number?
A prime number is a number whose only positive integer factors are itself and 1. Since 2056 ends in a 6, you know the number is divisible by 2 and therefore cannot possibly be prime.
How do you know if an expression is prime?
You try finding a factor. If there is no proper factor, then it is a prime.
How you know that 2 is a prime factor?
2 is a prime number because its only factors are one and itself. Since 2 is a prime number, if it is a factor of your number, it is a prime factor.
How do you know you have the biggest factor string?
When all of the factors are prime. The longest factor string is the prime factorization.
How you know the prime factor?
a number itself and 1
How do you know whena factor tree is completed?
All the numbers are prime
How do you know 25 and 36 are relatively prime?
25 and 36 are relatively prime because they both share 1 as a factor, but no other factor. As their only common factor is 1, they are relatively prime. Neither is a prime number itself, but it is about the common factors, so in relation to each other, they are relatively prime.
How do you know when you have found the longest factor string for 840?
You will know because all of the numbers are prime.
Are there any numbers that are a factor of 16 cube number and prime?
don't know if I understand your question, but: there are no numbers that are both cube numbers and prime numbers 8 is a factor of 16 that is a cube number (2^3) 2 is a factor of 16 that is a prime number
How do you know when you have found the longest factor string for a number?
All of the factors are prime.
Is 465 composite or prime?
Just by looking at it, without doing anything fancy, we can see immediately that it's divisible by 3 and 5, and after a moment's thought, we know that 15 is also a factor. Any one of these would be enough to tell that it's not prime.
What is a factor tree and how do youknow when a factor tree is complete?
When the bottom branch consists entirely of prime numbers.
