To find all the divisors of the number 47,579,688:
- 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 47,579,688:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
47,579,688 = 23 × 32 × 13 × 50,833
47,579,688 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) × (2 + 1) × (1 + 1) × (1 + 1) = 4 × 3 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 47,579,688
- 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 = 3
2 =
9
composite factor = 2
2 × 3 =
12
prime factor =
13
composite factor = 2 × 3
2 =
18
composite factor = 2
3 × 3 =
24
composite factor = 2 × 13 =
26
composite factor = 2
2 × 3
2 =
36
composite factor = 3 × 13 =
39
composite factor = 2
2 × 13 =
52
composite factor = 2
3 × 3
2 =
72
composite factor = 2 × 3 × 13 =
78
composite factor = 2
3 × 13 =
104
composite factor = 3
2 × 13 =
117
composite factor = 2
2 × 3 × 13 =
156
composite factor = 2 × 3
2 × 13 =
234
composite factor = 2
3 × 3 × 13 =
312
composite factor = 2
2 × 3
2 × 13 =
468
composite factor = 2
3 × 3
2 × 13 =
936
This list continues below...
... This list continues from above
prime factor =
50,833
composite factor = 2 × 50,833 =
101,666
composite factor = 3 × 50,833 =
152,499
composite factor = 2
2 × 50,833 =
203,332
composite factor = 2 × 3 × 50,833 =
304,998
composite factor = 2
3 × 50,833 =
406,664
composite factor = 3
2 × 50,833 =
457,497
composite factor = 2
2 × 3 × 50,833 =
609,996
composite factor = 13 × 50,833 =
660,829
composite factor = 2 × 3
2 × 50,833 =
914,994
composite factor = 2
3 × 3 × 50,833 =
1,219,992
composite factor = 2 × 13 × 50,833 =
1,321,658
composite factor = 2
2 × 3
2 × 50,833 =
1,829,988
composite factor = 3 × 13 × 50,833 =
1,982,487
composite factor = 2
2 × 13 × 50,833 =
2,643,316
composite factor = 2
3 × 3
2 × 50,833 =
3,659,976
composite factor = 2 × 3 × 13 × 50,833 =
3,964,974
composite factor = 2
3 × 13 × 50,833 =
5,286,632
composite factor = 3
2 × 13 × 50,833 =
5,947,461
composite factor = 2
2 × 3 × 13 × 50,833 =
7,929,948
composite factor = 2 × 3
2 × 13 × 50,833 =
11,894,922
composite factor = 2
3 × 3 × 13 × 50,833 =
15,859,896
composite factor = 2
2 × 3
2 × 13 × 50,833 =
23,789,844
composite factor = 2
3 × 3
2 × 13 × 50,833 =
47,579,688
48 factors (divisors)
What times what is 47,579,688?
What number multiplied by what number equals 47,579,688?
All the combinations of any two natural numbers whose product equals 47,579,688.
1 × 47,579,688 = 47,579,688
2 × 23,789,844 = 47,579,688
3 × 15,859,896 = 47,579,688
4 × 11,894,922 = 47,579,688
6 × 7,929,948 = 47,579,688
8 × 5,947,461 = 47,579,688
9 × 5,286,632 = 47,579,688
12 × 3,964,974 = 47,579,688
13 × 3,659,976 = 47,579,688
18 × 2,643,316 = 47,579,688
24 × 1,982,487 = 47,579,688
26 × 1,829,988 = 47,579,688
36 × 1,321,658 = 47,579,688
39 × 1,219,992 = 47,579,688
52 × 914,994 = 47,579,688
72 × 660,829 = 47,579,688
78 × 609,996 = 47,579,688
104 × 457,497 = 47,579,688
117 × 406,664 = 47,579,688
156 × 304,998 = 47,579,688
234 × 203,332 = 47,579,688
312 × 152,499 = 47,579,688
468 × 101,666 = 47,579,688
936 × 50,833 = 47,579,688
24 unique multiplications The final answer:
(scroll down)