Math  /  Numbers & Operations

QuestionЕрөнхий шинж чанартай, ялгаатай юмсын цуглуулгыг олонлог гэнэ. Тэгвэл дараах зүйлүүдээс аль нь анхны тоон олонлогт багтах вэ? 13,7,13,7,4,8-13,7,13,-7,4,8

Studdy Solution

STEP 1

Assumptions
1. We are given a set of numbers: 13,7,13,7,4,8-13, 7, 13, -7, 4, 8.
2. We need to determine which of these numbers are prime numbers.
3. A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

STEP 2

Identify the positive numbers from the given set, as prime numbers are positive integers greater than 1.
The positive numbers are: 7,13,4,87, 13, 4, 8.

STEP 3

Check each positive number to see if it is a prime number.
First, check the number 7: - The divisors of 7 are 1 and 7. - Since 7 has no divisors other than 1 and itself, 7 is a prime number.

STEP 4

Next, check the number 13: - The divisors of 13 are 1 and 13. - Since 13 has no divisors other than 1 and itself, 13 is a prime number.

STEP 5

Now, check the number 4: - The divisors of 4 are 1, 2, and 4. - Since 4 has divisors other than 1 and itself, 4 is not a prime number.

STEP 6

Finally, check the number 8: - The divisors of 8 are 1, 2, 4, and 8. - Since 8 has divisors other than 1 and itself, 8 is not a prime number.

STEP 7

From the analysis, the numbers that are prime are 7 and 13.
The prime numbers in the given set are 77 and 1313.

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