To find all the divisors of the number 1,569,078:
- 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 1,569,078:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,569,078 = 2 × 33 × 72 × 593
1,569,078 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 = (1 + 1) × (3 + 1) × (2 + 1) × (1 + 1) = 2 × 4 × 3 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,569,078
- 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 × 3 =
6
prime factor =
7
composite factor = 3
2 =
9
composite factor = 2 × 7 =
14
composite factor = 2 × 3
2 =
18
composite factor = 3 × 7 =
21
composite factor = 3
3 =
27
composite factor = 2 × 3 × 7 =
42
composite factor = 7
2 =
49
composite factor = 2 × 3
3 =
54
composite factor = 3
2 × 7 =
63
composite factor = 2 × 7
2 =
98
composite factor = 2 × 3
2 × 7 =
126
composite factor = 3 × 7
2 =
147
composite factor = 3
3 × 7 =
189
composite factor = 2 × 3 × 7
2 =
294
composite factor = 2 × 3
3 × 7 =
378
composite factor = 3
2 × 7
2 =
441
prime factor =
593
composite factor = 2 × 3
2 × 7
2 =
882
composite factor = 2 × 593 =
1,186
This list continues below...
... This list continues from above
composite factor = 3
3 × 7
2 =
1,323
composite factor = 3 × 593 =
1,779
composite factor = 2 × 3
3 × 7
2 =
2,646
composite factor = 2 × 3 × 593 =
3,558
composite factor = 7 × 593 =
4,151
composite factor = 3
2 × 593 =
5,337
composite factor = 2 × 7 × 593 =
8,302
composite factor = 2 × 3
2 × 593 =
10,674
composite factor = 3 × 7 × 593 =
12,453
composite factor = 3
3 × 593 =
16,011
composite factor = 2 × 3 × 7 × 593 =
24,906
composite factor = 7
2 × 593 =
29,057
composite factor = 2 × 3
3 × 593 =
32,022
composite factor = 3
2 × 7 × 593 =
37,359
composite factor = 2 × 7
2 × 593 =
58,114
composite factor = 2 × 3
2 × 7 × 593 =
74,718
composite factor = 3 × 7
2 × 593 =
87,171
composite factor = 3
3 × 7 × 593 =
112,077
composite factor = 2 × 3 × 7
2 × 593 =
174,342
composite factor = 2 × 3
3 × 7 × 593 =
224,154
composite factor = 3
2 × 7
2 × 593 =
261,513
composite factor = 2 × 3
2 × 7
2 × 593 =
523,026
composite factor = 3
3 × 7
2 × 593 =
784,539
composite factor = 2 × 3
3 × 7
2 × 593 =
1,569,078
48 factors (divisors)
What times what is 1,569,078?
What number multiplied by what number equals 1,569,078?
All the combinations of any two natural numbers whose product equals 1,569,078.
1 × 1,569,078 = 1,569,078
2 × 784,539 = 1,569,078
3 × 523,026 = 1,569,078
6 × 261,513 = 1,569,078
7 × 224,154 = 1,569,078
9 × 174,342 = 1,569,078
14 × 112,077 = 1,569,078
18 × 87,171 = 1,569,078
21 × 74,718 = 1,569,078
27 × 58,114 = 1,569,078
42 × 37,359 = 1,569,078
49 × 32,022 = 1,569,078
54 × 29,057 = 1,569,078
63 × 24,906 = 1,569,078
98 × 16,011 = 1,569,078
126 × 12,453 = 1,569,078
147 × 10,674 = 1,569,078
189 × 8,302 = 1,569,078
294 × 5,337 = 1,569,078
378 × 4,151 = 1,569,078
441 × 3,558 = 1,569,078
593 × 2,646 = 1,569,078
882 × 1,779 = 1,569,078
1,186 × 1,323 = 1,569,078
24 unique multiplications The final answer:
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