Which of the following is a composite number?

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Question:

Which of the following is a composite number?

A.91
B.139
C.13
D.29

Answer:

The composite number is . Option (A) is correct.

Further explanation:

Factors are the numbers that are multiplied together to obtain the original number.

The composite numbers are those who have more than 2 factors.

The prime numbers are those who have exactly 2 factors.

Given:

The options are as follows,

(A). 91

(B). 139

(C). 13

(D). 29

Explanation:

The factors of 91 are 1, 7, 13 and 91.

91 have 4 factors.

Therefore, 91 is a composite number.

The factors of 139 are 1 and 139.

139 have 2 factors.

Therefore, 139 is a prime number.

The factors of 13 are 1 and 13.

13 have 2 factors.

Therefore, 13 is a prime number.

The factors of 29 are 1 and 29.

29 have 2 factors.

Therefore, 29 is a prime number.

The composite number is

Option (A) is correct as 91 is a composite number.

Option (B) is not correct as 139 is a prime number.

Option (C) is not correct as 13 is a prime number.

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Option (D) is not correct as 29 is a prime number.

Learn more:

Answer details:

Grade: Middle School

Subject: Mathematics

Chapter: Composite numbers

Keywords: composite number, prime number, numbers, real number, 91, 139, 13, 29.

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