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Factor rainbows, like trees and fireworks, are a way to notate the process of finding the prime factorization of a given number. Once you have at least two of them, you can find a GCF.
Example: 30 and 42
5,3,2
15,2
30
7,3,2
21,2
42
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the common factors.
2 x 3 = 6, the GCF
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What is the GCF of 40 and 35?
All I did was make a factor tree. The GCF (Greatest Common Factor) is 5. :)
How do you make improper fractions into the simplest form?
Find the GCF of the numerator and the denominator and divide them both by it. If the GCF is 1, the fraction is in its simplest form.
How do you make sure a fraction is in lowest terms?
Find the GCF of the numerator and the denominator and divide them both by it. If the GCF is 1, the fraction is in its simplest form.
Can the GCF of two numbers be 1?
Yes But Make Sure Its Prime1
Why the rainbow is always a semi circle?
Because the earth blocks you from seeing the full circle. You can use a misting garden hose to make a rainbow, and you'll see it's a full circle.
