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The number that has exactly 15 factors is 28. To determine the number of factors a number has, you can prime factorize the number and then add 1 to each exponent in the prime factorization and multiply these numbers together. In the case of 28, the prime factorization is 2^2 * 7^1, so the number of factors is (2+1) * (1+1) = 3 * 2 = 6. To have exactly 15 factors, the number needs to be a square of a Prime number, so 28 = 2^2 * 7^1 fits this criteria.
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What number between 300 and 400 exactly has 15 factors?
This number would have to be a squared number as it only has 15 factors. The number I have calculated is 324 as the square root is 18
A number that has exactly two factors?
A prime number has exactly two factors.
What number is composite 15 17 19 0r 23?
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.
What numbers with exactly 3 factors are?
A number has exactly three factors if and only if it is the square of a prime number.
What are the common factors of 15 and 25?
The greatest common factor is the highest number that divides exactly into two or more numbers. Factors are numbers you can multiply together to get another number. Therefore, the common factors of 15 and 25 are 5 and 1.
What number between 300 and 400 exactly has 15 factors?
This number would have to be a squared number as it only has 15 factors. The number I have calculated is 324 as the square root is 18
What is a number between 15 and 20 that is a composite number and has exactly 5 factors?
16
What is the only number with exactly 15 factors?
Any prime number to the 14th power, like 16384.
Common factors of 11 and 15?
Factors are numbers which divide another number exactly. The factors of 11 are 1 and 11. The factors of 15 are 1, 3, 5 and 15. So the only common factor of 11 and 15 is 1.
A number that has exactly two factors?
A prime number has exactly two factors.
What is the highest divident of 15?
I'm not sure exactly what you're looking for. The factors of 15 are 1, 3, 5 and 15. The highest number that 15 can be divided by that will result in a whole number is 15.
What number is composite 15 17 19 0r 23?
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.
What number has exactly 8 factors?
the number 105 does - 1, 3, 5, 7, 15, 21, 35, 105
What number has exactly 24 factors?
Well, If we looked at this way: (224) = 16777216, so this number has exactly 24 factors. (324) = 282429536481, so this number has exactly 24 factors. (510)(210)(34) = 810000000000, so this number has exactly 24 factors.
What numbers with exactly 3 factors are?
A number has exactly three factors if and only if it is the square of a prime number.
What type of number has exactly two factors?
A prime number has exactly two factors: 1 and itself.
What are the common factors of 15 and 25?
The greatest common factor is the highest number that divides exactly into two or more numbers. Factors are numbers you can multiply together to get another number. Therefore, the common factors of 15 and 25 are 5 and 1.
