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I would use the Sieve of Eratosthenes.
Write out the numbers 1 to 100 in 10 rows. Cross out 1. Start at 2 and cross out multiples of 2. That will eliminate all the rest of the even numbers. Go to the next uncrossed-out number (3) and cross out all of its multiples. Some of them will already be crossed out. Proceed in this fashion. Five will be next. You can stop by the time you get to ten. All of the uncrossed-out numbers are prime.
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What would be a prime number between 30 and 40?
There are two prime numbers between 30 and 40 - these are 31 and 37.
Even prime numbers between 30 and 50?
wow good one. even and prime.... that would leave "2"
Are most prime numbers also odd numbers?
All prime numbers are odd numbers. If one were even, it would be divisible by two and would, therefore, not be prime.
Prime numbers between 180-220?
For this kind of question, I would suggest looking up a table of prime numbers. As an alternative, you can try to find factors for each of the numbers - if it has a factor, it is NOT a prime. For this range of numbers, testing for prime numbers up to 13 is appropriate. (If 17 is a factor of one of these numbers, the other factor is less than 17, so you would already have found it before you reach 17.)
Is it that 3 consecutive whole number can be prime factors Explain?
3 consecutive numbers cannot be prime factors. Any three consecutive numbers would include at least one even number. The only even prime number is 2, and (2,3,4) doesn't qualify.
How would you explain that 61 and 67 are the prime numbers between 60 and 70?
They are the only integers in that range with exactly two factors.
What would be a prime number between 30 and 40?
There are two prime numbers between 30 and 40 - these are 31 and 37.
How many 2 digit prime numbers are there?
there are 50 prime numbers between 1-100 and of them 2,3,5,7 are single digit so that would leave 46 double digit prime numbers between 1-100
What would you prefer odd numbers or prime numbers?
Prime numbers.
Even prime numbers between 30 and 50?
wow good one. even and prime.... that would leave "2"
Are most prime numbers also odd numbers?
All prime numbers are odd numbers. If one were even, it would be divisible by two and would, therefore, not be prime.
Explain why none of the prime numbers end in a 5 except for itself?
This is because if the number ends in a five, then it inherently is divisible by 5. This means that it inherently would not be a prime number.
What is the prime factors for numbers 849033451201111200500?
If you would be so kind as to put spaces between the numbers, we'd be better able to answer.
What does 'relatively prime' mean?
'Relatively Prime' simply means that two numbers have no common factors except 1 between each other. For example, two prime numbers would have no common factors between them. i.e., look at 3 and 10. There are no common factors between these 2 numbers.
What are the prime factors of the numbers from 1 to 15000?
The set of prime factors of the numbers from 1 to 15,000 would be the set of prime numbers between 1 and 15,000. The link below has a list of the first 10,000 prime numbers, so if you take the primes less than 15,000, you will have the set of prime factors of the first 15,000 numbers. For prime factors of individual numbers, check the related question, "What are the prime factors of the numbers from 1 to 200?" Also check for WikiAnswers questions in the form of "What are the prime factors of __?" and "What are the factors and prime factors of __?"
Prime numbers between 180-220?
For this kind of question, I would suggest looking up a table of prime numbers. As an alternative, you can try to find factors for each of the numbers - if it has a factor, it is NOT a prime. For this range of numbers, testing for prime numbers up to 13 is appropriate. (If 17 is a factor of one of these numbers, the other factor is less than 17, so you would already have found it before you reach 17.)
Is it that 3 consecutive whole number can be prime factors Explain?
3 consecutive numbers cannot be prime factors. Any three consecutive numbers would include at least one even number. The only even prime number is 2, and (2,3,4) doesn't qualify.
