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Earn +20 ptsQ: What is the prime factorization of 15 and 21?
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What is the prime factorization of 399 using only 21?
The prime factorization of 399 is 3 x 7 x 19. 21 wouldn't be included since it isn't a prime number.
What is the prime factorization of 77 and 15?
The prime factorization of 77 = 7 x 11The prime factorization of 15 = 3 x 5
What is the greatest common factor of 15 and 25 and 30?
The GCF of 15, 25, and 30 is 5.The prime factorization of 15 is 3*5.The prime factorization of 25 is 5*5The prime factorization of 30 is 2*3*5So the GCF of 15, 25, and 30 is 5.
What is the greatest common factor of 15 and 38?
1 is the greatest and only common factor of 15 and 38. The prime factorization of 15 is 3*5. The prime factorization of 38 is 2*19
Is 21x 2 the only prime factorization of 42?
21 isn't prime. The prime factorization of 42 is 2 x 3 x 7.
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