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How do you use prime factorization in real life?
well if you are a teacher or somebody who does math for a living then you probably need to know it.
How does real estate agents use math?
Yes, probably mainly percentages and adding/subtracting. Very simple mathematics.
What can you use gcf for in the real world?
The question presumes that math classes are not part of the real world, which is debatable. The GCF can be used to simplify fractions. Carpenters and chefs use fractions in practical, non-academic settings.
What is a use of factors and multiples?
I cannot say that nowadays with the use of calculators and computer that we 'need' to figure out the factors of a number in real life. One use I can think of is to splitting the bill among friends. In school, the use would be during an exam, it would be handy to break large numbers into smaller ones when you are asked to simplify a fraction. One other practical use is approximation. Sometimes I want to check whether my calculator results make sense -- I can use factors and multiples to reduce the numbers to their simplest form and get an approximate answer. Other times, I just need an approximate answer in my head without the benefit of a calculator.
When do you use multiplication of negative numbers in real life?
It is possible to live a long and productive life without ever multiplying a negative number outside of a classroom.
