230
Factorization into its smallest factors.
Among positive integers, 6
30,030 Factorization: 2x3x5x7x11x13
4096 is the smallest number with exactly 13 factors. (Including 1 and itself as factors).192 is the smallest number with exactly 13 properfactors, (excluding the number itself).120 is the smallest number with at least 13 factors (it has 16 factors)To find the smallest number with exactly N factors (for example, N=12):Factor N into primes, (for example, 12= 2*2*3Subtract 1 from each of the prime factors (for example, 1,1,2)Sort them by largest first (for example, 2,1,1)Raise successive prime numbers to these powers (for example, 2^2,3^1,5^1)Multiply these together (for example: 4*3*5 = 60; 60 is the smallest number with exactly 12 factors).
6
230
The smallest positive integer that has exactly 6 factors is 12. To determine the number of factors an integer has, we can use its prime factorization. In the case of 12, its prime factorization is 2^2 * 3, which means it has (2+1)(1+1) = 6 factors.
Factorization into its smallest factors.
Among positive integers, 6
The least positive integer that has exactly eight factors is 24. The number of factors of an integer can be determined from its prime factorization. The prime factorization of 24 is (2^3 \times 3^1), and using the formula for the number of factors, ((e_1 + 1)(e_2 + 1)), where (e_i) are the exponents in the factorization, we have ((3 + 1)(1 + 1) = 8). Thus, 24 has exactly eight factors.
3
The smallest number that has exactly 100 different positive integral factors is 2^6 × 3^4. To find the number of factors of a number based on its prime factorization, you can use the formula (e1 + 1)(e2 + 1)...(en + 1), where e1, e2, ..., en are the exponents in the prime factorization. For 2^6 × 3^4, the number of factors is (6 + 1)(4 + 1) = 7 × 5 = 35, which is less than 100, so a different combination of prime factorization would be needed to achieve exactly 100 factors. The correct combination resulting in 100 factors is 2^6 × 3^2 × 5^1, yielding the smallest number, which is 2^6 × 3^2 × 5 = 8640.
4 and 9
The smallest number that has exactly eight factors is 24. The factors of 1,2,3,4,6,8,12, and 24
30,030 Factorization: 2x3x5x7x11x13
30
The positive integer factors of 293 are: 1, 293