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Q: What number is between a pair of twin primes and has exactly 4 factors?

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Factors are whole numbers that divide exactly into a whole number. These numbers have no remainder. Primes, on the other hand, have exactly two factors which are 1 and itself.

Any composite number will do. No primes!

Numbers with three factors are squares of primes: 4, 9, 25

It's a multiple of 5, a multiple of 6 (since it's between twin primes), and less than 50. The only possibility is 30. To check: The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30

All numbers that are the square of primes have exactly 3 factors.

105 and the primes are 3, 5, and 7

Squares of primes.

935

If you mean have exactly 6 factors then infinitely many!Including those with at least 6 factors makes no difference, there are still infinitely many.The number of factors of a number depends solely upon the prime factorisation of the number. There will be exactly 6 factors if the number:has a single prime to the power five (eg 32 = 2 x 2 x 2 x 2 x 2 = 25); oris the product of two primes, one of which is squared (eg 12 = 2 x 2 x 3 = 22 x 3; 50 = 2 x 5 x 5 = 2 x 52)As there is an infinite number of primes, there are an infinite number of numbers with exactly 6 factors.

The squares of all primes have exactly 3 factors. The squares of primes under 40 are 4 (1, 2, and 4), 9 (1, 3, and 9), and 25 (1, 5, and 25).

Prime numbers have two factors. Squares of primes have three factors.

I'm not sure what you're asking. The smallest number that can't be between two primes is obviously 1. Once you start running into primes, every composite number is between at least two primes.

15 has more than exactly two factors (1, 3, 5, and 15), therefore it is composite. 17, 19, and 23 each have exactly 2 factors (1 and the number itself), so they are primes.

Since there are infinitely many primes, there are infinitely many numbers that are products of 3 primes.

Numbers with three factors are squares of primes. So: 4, 9, 25

Hi... Every integer can be expressed as the product of prime numbers (and these primes are it's factors). Since we can multiply any integer by 2 to create a larger integer which can also be expressed as the product of primes, and this number has more prime factors than the last, we can always get a bigger number with more prime factors. Therefore, there is no definable number with the most primes (much like there is no largest number)!

48 Every positive integer can be written uniquely as the product of primes. So, a = p1^a1 x p2^a2. .. where p1, p2 … are primes, and a1, a2. .. are positive integers. Also, that being the case, there are (a1+1)(a2+1)… factors. Using this backwards, you want a number with exactly 10 factors. 10=2×5 = (1+1)(4+1) The smallest value with exactly 10 factors is therefore 2^4 * 3^1 = 16 * 3 = 48 So your answer is 48

Two distinct prime factors, four altogether.

All non prime numbers have factors that are primes.

Yes, twin primes are prime numbers that have a difference of two, so there is a composite number between them. It would be an even number.

Numbers can be checked to see if they are primes simply by factoring them. Every prime number has exactly two factors, 1 and the number itself. If there are more or less than 2 factors, the number is not a prime. 1 has only one factor so it is not a prime, and composite numbers have 3 or more factors.

9 has the three factors 1,3 and 9 is one. 25 (1,5,25) is another. 7*7 = 49, 11*11 = 121. In general, all squares of primes (other than 2).

Assuming you are referring to the prime factors of the number, the product of the prime factors of any composite number is equal to the number itself.

squares of primes: 4, 9, 25, and 49.

Technically, you can't. You can find the prime factors of a number. If you compare those prime factors to the prime factors of another number, you will see if they have any prime factors in common.