Prime Numbers and Prime Factorization Answers
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1
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Prime numbers have
A
less than two factors.B
more than two factors.C
exactly two factors.D
less than or equal to two factors.2
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Rathan thinks all factors of even numbers are even. Is Rathan correct or incorrect?
A
He is correct because the product of 2 and any number is odd.B
He is correct because the product of two even numbers is even.C
He is incorrect because the product of an even number and an odd number is even.D
He is incorrect because the product of two odd numbers is odd.3
Latoya created a factor tree and wrote the prime factorization of 90 shown below.What is Latoya’s error?
A
She should not have found the factors of 9.B
She should have included an exponent of 2 on the 3.C
She should have included 9 and 10 in the prime factorization.D
She should have started the tree with .
5
What is the prime factorization of 40?
A
2 times 5
B
2 times 20
C
2 times 2 times 2 times 5
D
2 times 2 times 4 times 5
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