The only numbers that go into 19 are 1 and 19, 19 is the only Prime number that goes into 19.
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No, 19 is prime. A composite number needs to have 3 or more factors. 19 has only 2 factors, 1 and itself, which makes it prime.
76 is a composite number because it has factors other than 1 and itself.The 6 factors of 76 are 1, 2, 4, 19, 38, and 76.The factor pairs of 76 are 1 x 76, 2 x 38, and 4 x 19.The proper factors of 76 are 1, 2, 4, 19, and 38 or,if the definition you are using excludes 1, they are 2, 4, 19, and 38.The prime factors of 76 are 2, 2, and 19. Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed. The distinct prime factors of 76 are 2 and 19.The prime factorization of 76 is 2 x 2 x 19 or, in exponential form, 22 x 19.
The prime factors of 494 are 2, 13, and 19. The prime factors of 741 are 3, 13, and 19. The common factors are 13 and 19, so the greatest common factor is 13 x 19 = 247.
The prime factors are: 2, 19
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