Workout
1. Find the factors of the following numbers using multiplication and division
facts.
a) 144
b) 225
c) 205
Answers
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Factors of 144: 1, 4, 2, 3, 6, 8, 16, 9, 12, 18, 24, 36, 48, 72, 144. Prime factorization: 144 = 2 x 2 x 2 x 2 x 3 x 3.
225 is a composite number and a perfect square.
Prime factorization: 225 = 3 x 3 x 5 x 5, which can be written 225 = (3^2) x (5^2)
The exponents in the prime factorization are 2 and 2. ...
Factors of 225: 1, 3, 5, 9, 15, 25, 45, 75, 225.
Factor pairs: 225 = 1 x 225, 3 x 75, 5 x 45, 9 x 25, or 15 x 15.
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