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kaheart [24]
3 years ago
9

Tell which number is prime: 19, 28, 49, 63.

Mathematics
2 answers:
MaRussiya [10]3 years ago
7 0

Answer:

The number 19 is the prime number.

Step-by-step explanation:

Consider the provided number.

Prime number: A prime number is a whole number which is greater than 1 and the factors of the number are 1 and itself.

The prime factorization of the provided numbers are:

19 = 1×19

28 = 2×2×7

49 = 7×7

63 =7×9

Here 19 is the only number having factors 1 and 19 which is itself.

Hence, the number 19 is the prime number.

mariarad [96]3 years ago
3 0
19 is prime: 19 x 1 = 19
28 is not prime: 7 x 4 = 28
49 is not prime: 7 x 7 = 49
63 is not prime: 3 x 21 = 63

hope this helps
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