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3 years ago

Which of the following is a composite number? A. 31 B. 63 C. 61 D. 13

Mathematics

2 answers:

sashaice [31]3 years ago

7 0

Number 63 is a composite number

<h3>Further explanation</h3>

Numbers are quantities used in measurements

Numbers in mathematics can be divided into several terms

1. integer

numbers consist of positive, negative and 0 numbers

2. natural numbers

numbers consisting of positive numbers, starting with number 1

3. whole number

a number consists of positive numbers and zeros

4. prime number

numbers that can only be divided by numbers themselves and the number 1

And examples of other numbers such as imaginary numbers, real numbers, rational numbers, etc.

Integers themselves consist of

1. positive integers

the number to the right of the number 0 is 1,2,3 ...

2. negative integers

the numbers to the left of the zeros are -1, -2, -3 ...

3. number 0

A composite number is a positive integer that is not a prime number or can be stated: A whole number that can be made by multiplying other whole numbers

Let's look at the answer choices

A. 31

Is a prime number, because it can only be divided by 1 and the number itself (31)

B. 63

A composite number, because it can be divided by 3, and the product of 2 numbers is:

21 x 3 and

9 x 7

C. 61

Is a prime number, because it can only be divided by 1 and the number itself (61)

D. 13

Is a prime number, because it can only be divided by 1 and the number itself (13)

<h3>Learn more</h3>

Express 0.000431 L answer as an integer

brainly.com/question/10876135

type of number

brainly.com/question/12788761

Classify the number as a natural, whole, integer, rational, or irrational.

brainly.com/question/2731293

Keywords: natural, whole, integer, composite number

Fynjy0 [20]3 years ago

6 0

The option B $\boxed{{\mathbf{63}}}$ is correct.

Further explanation:

The prime numbers are the numbers that is only divisible by 1 and itself and greater than 1.

The composite number is an integer that is not prime it has always a positive divisor.

The first few composite numbers are $4,6,8,9,10,12.....$ .

Step by step explanation:

Now we have to choose the right option among the given options.

Option A: 31

The number 31 is prime number as it is divisible by 1 and itself.

Thus, option A is not correct.

Option B: 63

The number 63 is divisible by 3.

The number 63 can be written as,

$63 = 3 \times 3 \times 7$

Therefore, 63 is a composite number as the 3 and 7 are the factors of 63.

Thus, option B 63 is correct.

Option C: 61

The number 31 is prime number as it is divisible by 1 and itself.

Thus, option C is not correct.

Option D: 13

The number 31 is prime number as it is divisible by 1 and itself.

Thus, option D is not correct.

Learn more:

Learn more about the percentage of first prime natural number brainly.com/question/5452052
Learn more about the distributive property brainly.com/question/3153753
Learn more about midpoint of the segment brainly.com/question/3269852

Answer details:

Grade: Junior school

Subject: Mathematics

Chapter: Knowing the numbers

Keywords: Integers, natural numbers, prime numbers, percentage, divisible, itself, composite number, factors, greater,

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