Question

Circle the prime numbers in the list below.
17, 15, 4, 3, 1, 2, 12, 23, 27, 35, 41, 43, 58
Co-prime numbers​

Answer 1

Concept :

A whole number is larger than $1$ just the two elements themselves and $1$ is known as a prime number. Any positive integer other than a prime cannot be split by it without producing a decimal or fractional remainder. Because they serve as the foundation for whole numbers, primes are crucial to number theorists. They are also crucial to everyone else because of their peculiar mathematical qualities, which make them ideal for our contemporary applications. A quick glance at this condensed table of rational numbers can immediately highlight a few intriguing findings. First, all prime numbers, with the exception of $2$, are odd because an even number can be divided by two, making it composite.

Given: $17, 15, 4, 3, 1, 2, 12, 23, 27, 35, 41, 43, 58$

Find, the prime numbers in the list

Solution:

According to the problem,

$17, 15, 4, 3, 1, 2, 12, 23, 27, 35, 41, 43, 58$

So, the prime numbers are

$17, 3, 1, 2, 23, 41, 43$

Hence the prime numbers are $17, 3, 1, 2, 23, 41, 43$.

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Answer 2

Answer:

17, 3, 2, 23, 41 and 43 are prime numbers from the list

Explanation:

• Prime numbers are the one that have factors other than 1 and the number itself.
• The numbers in the list can be written as. 15 = 3 x 5, 4 = 2 x 2, 12 = 3 x 4, 27 = 9 x 3, 35 = 7 x 5, 58 = 2 x 29.
• 1 is an exception and is neither prime nor composite.
• Rest all the numbers- 17, 3, 2, 23, 41 and 43 are prime as they cannot be written as the product of two numbers apart from 1 and the number itself.

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