To find all the divisors of the number 999,999,999,948:
- 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 999,999,999,948:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
999,999,999,948 = 22 × 3 × 10,607 × 7,856,447
999,999,999,948 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 = (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 = 24
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 999,999,999,948
- 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
2 × 3 =
12
prime factor =
10,607
composite factor = 2 × 10,607 =
21,214
composite factor = 3 × 10,607 =
31,821
composite factor = 2
2 × 10,607 =
42,428
composite factor = 2 × 3 × 10,607 =
63,642
composite factor = 2
2 × 3 × 10,607 =
127,284
This list continues below...
... This list continues from above
prime factor =
7,856,447
composite factor = 2 × 7,856,447 =
15,712,894
composite factor = 3 × 7,856,447 =
23,569,341
composite factor = 2
2 × 7,856,447 =
31,425,788
composite factor = 2 × 3 × 7,856,447 =
47,138,682
composite factor = 2
2 × 3 × 7,856,447 =
94,277,364
composite factor = 10,607 × 7,856,447 =
83,333,333,329
composite factor = 2 × 10,607 × 7,856,447 =
166,666,666,658
composite factor = 3 × 10,607 × 7,856,447 =
249,999,999,987
composite factor = 2
2 × 10,607 × 7,856,447 =
333,333,333,316
composite factor = 2 × 3 × 10,607 × 7,856,447 =
499,999,999,974
composite factor = 2
2 × 3 × 10,607 × 7,856,447 =
999,999,999,948
24 factors (divisors)
What times what is 999,999,999,948?
What number multiplied by what number equals 999,999,999,948?
All the combinations of any two natural numbers whose product equals 999,999,999,948.
1 × 999,999,999,948 = 999,999,999,948
2 × 499,999,999,974 = 999,999,999,948
3 × 333,333,333,316 = 999,999,999,948
4 × 249,999,999,987 = 999,999,999,948
6 × 166,666,666,658 = 999,999,999,948
12 × 83,333,333,329 = 999,999,999,948
10,607 × 94,277,364 = 999,999,999,948
21,214 × 47,138,682 = 999,999,999,948
31,821 × 31,425,788 = 999,999,999,948
42,428 × 23,569,341 = 999,999,999,948
63,642 × 15,712,894 = 999,999,999,948
127,284 × 7,856,447 = 999,999,999,948
12 unique multiplications The final answer:
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