To find all the divisors of the number 28,548,024:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 28,548,024:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
28,548,024 = 23 × 3 × 31 × 38,371
28,548,024 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 28,548,024
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 2
2 × 3 =
12
composite factor = 2
3 × 3 =
24
prime factor =
31
composite factor = 2 × 31 =
62
composite factor = 3 × 31 =
93
composite factor = 2
2 × 31 =
124
composite factor = 2 × 3 × 31 =
186
composite factor = 2
3 × 31 =
248
composite factor = 2
2 × 3 × 31 =
372
composite factor = 2
3 × 3 × 31 =
744
This list continues below...
... This list continues from above
prime factor =
38,371
composite factor = 2 × 38,371 =
76,742
composite factor = 3 × 38,371 =
115,113
composite factor = 2
2 × 38,371 =
153,484
composite factor = 2 × 3 × 38,371 =
230,226
composite factor = 2
3 × 38,371 =
306,968
composite factor = 2
2 × 3 × 38,371 =
460,452
composite factor = 2
3 × 3 × 38,371 =
920,904
composite factor = 31 × 38,371 =
1,189,501
composite factor = 2 × 31 × 38,371 =
2,379,002
composite factor = 3 × 31 × 38,371 =
3,568,503
composite factor = 2
2 × 31 × 38,371 =
4,758,004
composite factor = 2 × 3 × 31 × 38,371 =
7,137,006
composite factor = 2
3 × 31 × 38,371 =
9,516,008
composite factor = 2
2 × 3 × 31 × 38,371 =
14,274,012
composite factor = 2
3 × 3 × 31 × 38,371 =
28,548,024
32 factors (divisors)
What times what is 28,548,024?
What number multiplied by what number equals 28,548,024?
All the combinations of any two natural numbers whose product equals 28,548,024.
1 × 28,548,024 = 28,548,024
2 × 14,274,012 = 28,548,024
3 × 9,516,008 = 28,548,024
4 × 7,137,006 = 28,548,024
6 × 4,758,004 = 28,548,024
8 × 3,568,503 = 28,548,024
12 × 2,379,002 = 28,548,024
24 × 1,189,501 = 28,548,024
31 × 920,904 = 28,548,024
62 × 460,452 = 28,548,024
93 × 306,968 = 28,548,024
124 × 230,226 = 28,548,024
186 × 153,484 = 28,548,024
248 × 115,113 = 28,548,024
372 × 76,742 = 28,548,024
744 × 38,371 = 28,548,024
16 unique multiplications The final answer:
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