Question

Подчеркните все простые числа среди первых 30 натуральных чисел 1, 2, 3,4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30

Answer 1

2,3,5,7,11,13,17,19,23,29

Answer 2

Simple Numbers Among the First 30 Natural Numbers

To identify the simple numbers among the first 30 natural numbers, we need to determine which numbers have only two distinct factors: 1 and the number itself. Let's examine the first 30 natural numbers and identify the simple numbers:

1. The number 1 is not considered a simple number because it only has one factor, which is 1. 2. The number 2 is a simple number because it has two factors: 1 and 2. (Source: 3. The number 3 is a simple number because it has two factors: 1 and 3. (Source: 4. The number 4 is not a simple number because it has more than two factors: 1, 2, and 4. 5. The number 5 is a simple number because it has two factors: 1 and 5. (Source: 6. The number 6 is not a simple number because it has more than two factors: 1, 2, 3, and 6. 7. The number 7 is a simple number because it has two factors: 1 and 7. (Source: 8. The number 8 is not a simple number because it has more than two factors: 1, 2, 4, and 8. 9. The number 9 is not a simple number because it has more than two factors: 1, 3, and 9. 10. The number 10 is not a simple number because it has more than two factors: 1, 2, 5, and 10. 11. The number 11 is a simple number because it has two factors: 1 and 11. (Source: 12. The number 12 is not a simple number because it has more than two factors: 1, 2, 3, 4, 6, and 12. 13. The number 13 is a simple number because it has two factors: 1 and 13. (Source: 14. The number 14 is not a simple number because it has more than two factors: 1, 2, 7, and 14. 15. The number 15 is not a simple number because it has more than two factors: 1, 3, 5, and 15. 16. The number 16 is not a simple number because it has more than two factors: 1, 2, 4, 8, and 16. 17. The number 17 is a simple number because it has two factors: 1 and 17. (Source: 18. The number 18 is not a simple number because it has more than two factors: 1, 2, 3, 6, 9, and 18. 19. The number 19 is a simple number because it has two factors: 1 and 19. (Source: 20. The number 20 is not a simple number because it has more than two factors: 1, 2, 4, 5, 10, and 20. 21. The number 21 is not a simple number because it has more than two factors: 1, 3, 7, and 21. 22. The number 22 is not a simple number because it has more than two factors: 1, 2, 11, and 22. 23. The number 23 is a simple number because it has two factors: 1 and 23. (Source: 24. The number 24 is not a simple number because it has more than two factors: 1, 2, 3, 4, 6, 8, 12, and 24. 25. The number 25 is not a simple number because it has more than two factors: 1, 5, and 25. 26. The number 26 is not a simple number because it has more than two factors: 1, 2, 13, and 26. 27. The number 27 is not a simple number because it has more than two factors: 1, 3, 9, and 27. 28. The number 28 is not a simple number because it has more than two factors: 1, 2, 4, 7, 14, and 28. 29. The number 29 is a simple number because it has two factors: 1 and 29. (Source: 30. The number 30 is not a simple number because it has more than two factors: 1, 2, 3, 5, 6, 10, 15, and 30.

Therefore, the simple numbers among the first 30 natural numbers are: 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29.