Question

42 кратно 7? 45 кратно 3 и 5 Нок(10,15)=30? 5 является делителем числа 21 24 имеет 8 натуральных делителей? нужно выбрать правлельные утверждения

Answer 1

1 2 3 5 верные утверждения
21 на 5 не делится
у 24 8 натуральных делителей  1 2 3 4 6 8 12 24

Answer 2

Is 42 divisible by 7?

Yes, 42 is divisible by 7. When a number is divisible by another number, it means that it can be divided evenly without leaving a remainder. In the case of 42 and 7, 42 divided by 7 equals 6, with no remainder. Therefore, 42 is divisible by 7. [[1]]

Is 45 divisible by 3 and 5?

Yes, 45 is divisible by both 3 and 5. When a number is divisible by another number, it means that it can be divided evenly without leaving a remainder. In the case of 45 and 3, 45 divided by 3 equals 15, with no remainder. Similarly, 45 divided by 5 equals 9, with no remainder. Therefore, 45 is divisible by both 3 and 5. [[2]]

What is the least common multiple (LCM) of 10 and 15?

The least common multiple (LCM) of two numbers is the smallest multiple that is divisible by both numbers. To find the LCM of 10 and 15, we can list the multiples of each number and find the smallest common multiple. The multiples of 10 are 10, 20, 30, 40, 50, and so on. The multiples of 15 are 15, 30, 45, 60, and so on. The smallest common multiple of 10 and 15 is 30. Therefore, the LCM of 10 and 15 is 30. [[3]]

Is 5 a divisor of 21?

No, 5 is not a divisor of 21. A divisor, also known as a factor, is a number that divides another number evenly without leaving a remainder. In the case of 21, the divisors are 1, 3, 7, and 21. 5 is not a divisor of 21 because it does not divide 21 evenly. [[4]]

How many natural divisors does 24 have?

The number 24 has 8 natural divisors. Natural divisors are the positive integers that divide a number evenly without leaving a remainder. The natural divisors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24. Therefore, 24 has 8 natural divisors. [[5]]

Select the correct statements:

- 42 is divisible by 7. - 45 is divisible by 3 and 5. - The least common multiple of 10 and 15 is 30. - 5 is not a divisor of 21. - 24 has 8 natural divisors.

All of the above statements are correct.