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Why are prime numbers used in code creations?
I use prime numbers in code to catalog things with one number. I assign a prime number to a certain characteristic. Then I multiply together the prime numbers for each characteristic contained. Later, that number can be divided a prime number. If a remainder of zero is returned I know it contains the number and what too associate it with.
How do you use prime factors to help you multiply by 18?
Presumably, the theory is that it's easier to multiply by small numbers than larger ones. If there's a number that you need multiplied by 18, multiply it by 3, then multiply that total by 3, then multiply that total by 2.
Is 41 prime or composite and explain?
41 is prime because you can only multiply 41 and itself to get 41, wich makes a number prime. You can check if a number is prime by dividing it by the numbers 2 to 9 and if you don't get a whole number from any of the numbers you divided them with, then the number is prime. It's easier if you use a calculator for dividing all the numbers unless you are good at math.
How can you use the prime factorization of two numbers to determine whether they are relatively prime?
Use the prime factorizations to determine the GCF. If the GCF is 1, the numbers are relatively prime. If the two numbers have no prime factors in common, they are relatively prime.
What prime numbers can you use to multiply 4 times to reach a total of 1225?
The answer is: 5 x 5 x 7 x 7 = 1,225
