To find all the divisors of the number 1,000,000,443:
- 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 1,000,000,443:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,000,000,443 = 3 × 13 × 37 × 487 × 1,423
1,000,000,443 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) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,000,000,443
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- 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 =
3
prime factor =
13
prime factor =
37
composite factor = 3 × 13 =
39
composite factor = 3 × 37 =
111
composite factor = 13 × 37 =
481
prime factor =
487
prime factor =
1,423
composite factor = 3 × 13 × 37 =
1,443
composite factor = 3 × 487 =
1,461
composite factor = 3 × 1,423 =
4,269
composite factor = 13 × 487 =
6,331
composite factor = 37 × 487 =
18,019
composite factor = 13 × 1,423 =
18,499
composite factor = 3 × 13 × 487 =
18,993
This list continues below...
... This list continues from above
composite factor = 37 × 1,423 =
52,651
composite factor = 3 × 37 × 487 =
54,057
composite factor = 3 × 13 × 1,423 =
55,497
composite factor = 3 × 37 × 1,423 =
157,953
composite factor = 13 × 37 × 487 =
234,247
composite factor = 13 × 37 × 1,423 =
684,463
composite factor = 487 × 1,423 =
693,001
composite factor = 3 × 13 × 37 × 487 =
702,741
composite factor = 3 × 13 × 37 × 1,423 =
2,053,389
composite factor = 3 × 487 × 1,423 =
2,079,003
composite factor = 13 × 487 × 1,423 =
9,009,013
composite factor = 37 × 487 × 1,423 =
25,641,037
composite factor = 3 × 13 × 487 × 1,423 =
27,027,039
composite factor = 3 × 37 × 487 × 1,423 =
76,923,111
composite factor = 13 × 37 × 487 × 1,423 =
333,333,481
composite factor = 3 × 13 × 37 × 487 × 1,423 =
1,000,000,443
32 factors (divisors)
What times what is 1,000,000,443?
What number multiplied by what number equals 1,000,000,443?
All the combinations of any two natural numbers whose product equals 1,000,000,443.
1 × 1,000,000,443 = 1,000,000,443
3 × 333,333,481 = 1,000,000,443
13 × 76,923,111 = 1,000,000,443
37 × 27,027,039 = 1,000,000,443
39 × 25,641,037 = 1,000,000,443
111 × 9,009,013 = 1,000,000,443
481 × 2,079,003 = 1,000,000,443
487 × 2,053,389 = 1,000,000,443
1,423 × 702,741 = 1,000,000,443
1,443 × 693,001 = 1,000,000,443
1,461 × 684,463 = 1,000,000,443
4,269 × 234,247 = 1,000,000,443
6,331 × 157,953 = 1,000,000,443
18,019 × 55,497 = 1,000,000,443
18,499 × 54,057 = 1,000,000,443
18,993 × 52,651 = 1,000,000,443
16 unique multiplications The final answer:
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