To find all the divisors of the number 1,000,000,288:
- 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 1,000,000,288:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,000,000,288 = 25 × 7 × 1,907 × 2,341
1,000,000,288 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 = (5 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 6 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,000,000,288
- 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
composite factor = 2
2 =
4
prime factor =
7
composite factor = 2
3 =
8
composite factor = 2 × 7 =
14
composite factor = 2
4 =
16
composite factor = 2
2 × 7 =
28
composite factor = 2
5 =
32
composite factor = 2
3 × 7 =
56
composite factor = 2
4 × 7 =
112
composite factor = 2
5 × 7 =
224
prime factor =
1,907
prime factor =
2,341
composite factor = 2 × 1,907 =
3,814
composite factor = 2 × 2,341 =
4,682
composite factor = 2
2 × 1,907 =
7,628
composite factor = 2
2 × 2,341 =
9,364
composite factor = 7 × 1,907 =
13,349
composite factor = 2
3 × 1,907 =
15,256
composite factor = 7 × 2,341 =
16,387
composite factor = 2
3 × 2,341 =
18,728
composite factor = 2 × 7 × 1,907 =
26,698
composite factor = 2
4 × 1,907 =
30,512
This list continues below...
... This list continues from above
composite factor = 2 × 7 × 2,341 =
32,774
composite factor = 2
4 × 2,341 =
37,456
composite factor = 2
2 × 7 × 1,907 =
53,396
composite factor = 2
5 × 1,907 =
61,024
composite factor = 2
2 × 7 × 2,341 =
65,548
composite factor = 2
5 × 2,341 =
74,912
composite factor = 2
3 × 7 × 1,907 =
106,792
composite factor = 2
3 × 7 × 2,341 =
131,096
composite factor = 2
4 × 7 × 1,907 =
213,584
composite factor = 2
4 × 7 × 2,341 =
262,192
composite factor = 2
5 × 7 × 1,907 =
427,168
composite factor = 2
5 × 7 × 2,341 =
524,384
composite factor = 1,907 × 2,341 =
4,464,287
composite factor = 2 × 1,907 × 2,341 =
8,928,574
composite factor = 2
2 × 1,907 × 2,341 =
17,857,148
composite factor = 7 × 1,907 × 2,341 =
31,250,009
composite factor = 2
3 × 1,907 × 2,341 =
35,714,296
composite factor = 2 × 7 × 1,907 × 2,341 =
62,500,018
composite factor = 2
4 × 1,907 × 2,341 =
71,428,592
composite factor = 2
2 × 7 × 1,907 × 2,341 =
125,000,036
composite factor = 2
5 × 1,907 × 2,341 =
142,857,184
composite factor = 2
3 × 7 × 1,907 × 2,341 =
250,000,072
composite factor = 2
4 × 7 × 1,907 × 2,341 =
500,000,144
composite factor = 2
5 × 7 × 1,907 × 2,341 =
1,000,000,288
48 factors (divisors)
What times what is 1,000,000,288?
What number multiplied by what number equals 1,000,000,288?
All the combinations of any two natural numbers whose product equals 1,000,000,288.
1 × 1,000,000,288 = 1,000,000,288
2 × 500,000,144 = 1,000,000,288
4 × 250,000,072 = 1,000,000,288
7 × 142,857,184 = 1,000,000,288
8 × 125,000,036 = 1,000,000,288
14 × 71,428,592 = 1,000,000,288
16 × 62,500,018 = 1,000,000,288
28 × 35,714,296 = 1,000,000,288
32 × 31,250,009 = 1,000,000,288
56 × 17,857,148 = 1,000,000,288
112 × 8,928,574 = 1,000,000,288
224 × 4,464,287 = 1,000,000,288
1,907 × 524,384 = 1,000,000,288
2,341 × 427,168 = 1,000,000,288
3,814 × 262,192 = 1,000,000,288
4,682 × 213,584 = 1,000,000,288
7,628 × 131,096 = 1,000,000,288
9,364 × 106,792 = 1,000,000,288
13,349 × 74,912 = 1,000,000,288
15,256 × 65,548 = 1,000,000,288
16,387 × 61,024 = 1,000,000,288
18,728 × 53,396 = 1,000,000,288
26,698 × 37,456 = 1,000,000,288
30,512 × 32,774 = 1,000,000,288
24 unique multiplications The final answer:
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