To find all the divisors of the number 480,384:
- 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 480,384:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
480,384 = 27 × 33 × 139
480,384 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 = (7 + 1) × (3 + 1) × (1 + 1) = 8 × 4 × 2 = 64
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 480,384
- 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
composite factor = 2
4 =
16
composite factor = 2 × 3
2 =
18
composite factor = 2
3 × 3 =
24
composite factor = 3
3 =
27
composite factor = 2
5 =
32
composite factor = 2
2 × 3
2 =
36
composite factor = 2
4 × 3 =
48
composite factor = 2 × 3
3 =
54
composite factor = 2
6 =
64
composite factor = 2
3 × 3
2 =
72
composite factor = 2
5 × 3 =
96
composite factor = 2
2 × 3
3 =
108
composite factor = 2
7 =
128
prime factor =
139
composite factor = 2
4 × 3
2 =
144
composite factor = 2
6 × 3 =
192
composite factor = 2
3 × 3
3 =
216
composite factor = 2 × 139 =
278
composite factor = 2
5 × 3
2 =
288
composite factor = 2
7 × 3 =
384
composite factor = 3 × 139 =
417
composite factor = 2
4 × 3
3 =
432
composite factor = 2
2 × 139 =
556
composite factor = 2
6 × 3
2 =
576
This list continues below...
... This list continues from above
composite factor = 2 × 3 × 139 =
834
composite factor = 2
5 × 3
3 =
864
composite factor = 2
3 × 139 =
1,112
composite factor = 2
7 × 3
2 =
1,152
composite factor = 3
2 × 139 =
1,251
composite factor = 2
2 × 3 × 139 =
1,668
composite factor = 2
6 × 3
3 =
1,728
composite factor = 2
4 × 139 =
2,224
composite factor = 2 × 3
2 × 139 =
2,502
composite factor = 2
3 × 3 × 139 =
3,336
composite factor = 2
7 × 3
3 =
3,456
composite factor = 3
3 × 139 =
3,753
composite factor = 2
5 × 139 =
4,448
composite factor = 2
2 × 3
2 × 139 =
5,004
composite factor = 2
4 × 3 × 139 =
6,672
composite factor = 2 × 3
3 × 139 =
7,506
composite factor = 2
6 × 139 =
8,896
composite factor = 2
3 × 3
2 × 139 =
10,008
composite factor = 2
5 × 3 × 139 =
13,344
composite factor = 2
2 × 3
3 × 139 =
15,012
composite factor = 2
7 × 139 =
17,792
composite factor = 2
4 × 3
2 × 139 =
20,016
composite factor = 2
6 × 3 × 139 =
26,688
composite factor = 2
3 × 3
3 × 139 =
30,024
composite factor = 2
5 × 3
2 × 139 =
40,032
composite factor = 2
7 × 3 × 139 =
53,376
composite factor = 2
4 × 3
3 × 139 =
60,048
composite factor = 2
6 × 3
2 × 139 =
80,064
composite factor = 2
5 × 3
3 × 139 =
120,096
composite factor = 2
7 × 3
2 × 139 =
160,128
composite factor = 2
6 × 3
3 × 139 =
240,192
composite factor = 2
7 × 3
3 × 139 =
480,384
64 factors (divisors)
What times what is 480,384?
What number multiplied by what number equals 480,384?
All the combinations of any two natural numbers whose product equals 480,384.
1 × 480,384 = 480,384
2 × 240,192 = 480,384
3 × 160,128 = 480,384
4 × 120,096 = 480,384
6 × 80,064 = 480,384
8 × 60,048 = 480,384
9 × 53,376 = 480,384
12 × 40,032 = 480,384
16 × 30,024 = 480,384
18 × 26,688 = 480,384
24 × 20,016 = 480,384
27 × 17,792 = 480,384
32 × 15,012 = 480,384
36 × 13,344 = 480,384
48 × 10,008 = 480,384
54 × 8,896 = 480,384
64 × 7,506 = 480,384
72 × 6,672 = 480,384
96 × 5,004 = 480,384
108 × 4,448 = 480,384
128 × 3,753 = 480,384
139 × 3,456 = 480,384
144 × 3,336 = 480,384
192 × 2,502 = 480,384
216 × 2,224 = 480,384
278 × 1,728 = 480,384
288 × 1,668 = 480,384
384 × 1,251 = 480,384
417 × 1,152 = 480,384
432 × 1,112 = 480,384
556 × 864 = 480,384
576 × 834 = 480,384
32 unique multiplications The final answer:
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