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2 + 3 = 5

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โˆ™ 2010-02-25 21:32:39
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Factoring and Multiples

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What is the prime factorization of 24

What is the prime factorization of 54

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What is the prime factorization of 34

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Q: What are two prime numbers less than 20 whose sum is also a prime number?
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What are three prime numbers where the average is also a prime number?

3, 5, and 7 are three prime numbers whose average is 5.

What is the smallest numbers whose prime factors are the consecutive prime number from 20 and onwards?

There are infinitely many prime numbers, and also infinitely many twin primes so there is no answer to the question.

What is the first prime number whose successor is also a prime number?


What is a emirp number?

"emirp" is "prime" spelled backwards. An emirp number is a prime number whose reverse is also a prime. However, palindromic primes are excluded. So 13 / 31 are emirp numbers.

What are even numbers that are also prime numbers?

The only even prime number is 2.

What is largest two digit prime numbers whose digits are also prime?

73 satisfies your condition.

Which of the numbers in questions 1-3 are prime numbers?


Are all prime numbers also odd numbers?

Yes, every prime number, except for the number 2, is odd.

What number has 3 prime numbers in it but is also a factor?

30 has three prime numbers and is a factor of 60.

Is it true or false that only odd numbers are prime numbers And why?

False because 2 is an even number which is also a prime number.

What is the smallest two-digits prime number whose digits are also prime themselves?


What are two prime numbers whose sum is also prime?

2 + 3 = 5 2 + 5 = 7 2+ 11 = 13 2 + 41 = 43 The numbers only work with 2 because adding odd numbers together equals an even number. 2 is the only even prime number and thus adding any other prime numbers together will not equal a prime.

Is the sum of prime numbers also a prime number?

Sometimes.2 + 3 = 5 (prime number)5 + 7 = 12 (not a prime number)

What is the lowest prime number that has all of the numbers prime?

The smallest prime number in which all of the digits are also prime is 2.The smallest multi-digit prime number in which all of the digits are also prime is 23.

Can all even numbers up to a 100 be made by 2 prime numbers?

No because 2 is an even number which is also a prime number

What makes prime numbers and composite numbers related?

Prime numbers are related with composite numbers as they are both natural numbers and real numbers and also every composite number is a product of prime numbers due to which they are related with each other.For example 24=[2] [2] [3] [2].Here 24 is a composite number,real number and natural number and 2,2,3,2 are prime numbers and also they are real and natural numbers

Are all numbers prime numbers?

No. A prime number is a number that can only be divided by itself and 1. The first prime number is 2 - which is also the only even prime number. The prime numbers from 1 - 20 are: 2 and 3 and 5 and 7 and 11 and 13 and 17 and 19

What to write when describing the properties of prime numbers?

Numbers divisible by 1 & number itself are called prime numbers. These numbers also have the property to be odd numbers.

What prime number is also an even number?

the only prime number that is even is 2. all of the other positive even numbers can be divided by 2. negative numbers aren't considered prime.

What does prime factorization tell you about numbers?

It tells you if a number is prime or composite and it also gives you a few factors of the number.

What number is a prime number and also a factor of 34?

34 = 2 x 17 which are both prime numbers

What are the even numbers and also be a prime number between 1 30?

The only even prime number is 2.

What is a number that is a factor of 6012015 and a prime number also a factor of 20?

5 is a prime factor of both numbers.

Did number two and three are prime numbers they are also consecutive numbers. Are there other parents of prime that are consecutive numberswhy or why not?

No other prime numbers are consecutive because there aren't any other even prime numbers.

Write two numbers whose GCF is 1?

Any two prime numbers, eg 3 and 17 also any two co-prime numbers eg 26 and 33