To find all the divisors of the number 52,080:
- 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 52,080:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
52,080 = 24 × 3 × 5 × 7 × 31
52,080 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 = (4 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 5 × 2 × 2 × 2 × 2 = 80
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 52,080
- 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
prime factor =
5
composite factor = 2 × 3 =
6
prime factor =
7
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 3 × 5 =
15
composite factor = 2
4 =
16
composite factor = 2
2 × 5 =
20
composite factor = 3 × 7 =
21
composite factor = 2
3 × 3 =
24
composite factor = 2
2 × 7 =
28
composite factor = 2 × 3 × 5 =
30
prime factor =
31
composite factor = 5 × 7 =
35
composite factor = 2
3 × 5 =
40
composite factor = 2 × 3 × 7 =
42
composite factor = 2
4 × 3 =
48
composite factor = 2
3 × 7 =
56
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2 × 31 =
62
composite factor = 2 × 5 × 7 =
70
composite factor = 2
4 × 5 =
80
composite factor = 2
2 × 3 × 7 =
84
composite factor = 3 × 31 =
93
composite factor = 3 × 5 × 7 =
105
composite factor = 2
4 × 7 =
112
composite factor = 2
3 × 3 × 5 =
120
composite factor = 2
2 × 31 =
124
composite factor = 2
2 × 5 × 7 =
140
composite factor = 5 × 31 =
155
composite factor = 2
3 × 3 × 7 =
168
composite factor = 2 × 3 × 31 =
186
composite factor = 2 × 3 × 5 × 7 =
210
composite factor = 7 × 31 =
217
This list continues below...
... This list continues from above
composite factor = 2
4 × 3 × 5 =
240
composite factor = 2
3 × 31 =
248
composite factor = 2
3 × 5 × 7 =
280
composite factor = 2 × 5 × 31 =
310
composite factor = 2
4 × 3 × 7 =
336
composite factor = 2
2 × 3 × 31 =
372
composite factor = 2
2 × 3 × 5 × 7 =
420
composite factor = 2 × 7 × 31 =
434
composite factor = 3 × 5 × 31 =
465
composite factor = 2
4 × 31 =
496
composite factor = 2
4 × 5 × 7 =
560
composite factor = 2
2 × 5 × 31 =
620
composite factor = 3 × 7 × 31 =
651
composite factor = 2
3 × 3 × 31 =
744
composite factor = 2
3 × 3 × 5 × 7 =
840
composite factor = 2
2 × 7 × 31 =
868
composite factor = 2 × 3 × 5 × 31 =
930
composite factor = 5 × 7 × 31 =
1,085
composite factor = 2
3 × 5 × 31 =
1,240
composite factor = 2 × 3 × 7 × 31 =
1,302
composite factor = 2
4 × 3 × 31 =
1,488
composite factor = 2
4 × 3 × 5 × 7 =
1,680
composite factor = 2
3 × 7 × 31 =
1,736
composite factor = 2
2 × 3 × 5 × 31 =
1,860
composite factor = 2 × 5 × 7 × 31 =
2,170
composite factor = 2
4 × 5 × 31 =
2,480
composite factor = 2
2 × 3 × 7 × 31 =
2,604
composite factor = 3 × 5 × 7 × 31 =
3,255
composite factor = 2
4 × 7 × 31 =
3,472
composite factor = 2
3 × 3 × 5 × 31 =
3,720
composite factor = 2
2 × 5 × 7 × 31 =
4,340
composite factor = 2
3 × 3 × 7 × 31 =
5,208
composite factor = 2 × 3 × 5 × 7 × 31 =
6,510
composite factor = 2
4 × 3 × 5 × 31 =
7,440
composite factor = 2
3 × 5 × 7 × 31 =
8,680
composite factor = 2
4 × 3 × 7 × 31 =
10,416
composite factor = 2
2 × 3 × 5 × 7 × 31 =
13,020
composite factor = 2
4 × 5 × 7 × 31 =
17,360
composite factor = 2
3 × 3 × 5 × 7 × 31 =
26,040
composite factor = 2
4 × 3 × 5 × 7 × 31 =
52,080
80 factors (divisors)
What times what is 52,080?
What number multiplied by what number equals 52,080?
All the combinations of any two natural numbers whose product equals 52,080.
1 × 52,080 = 52,080
2 × 26,040 = 52,080
3 × 17,360 = 52,080
4 × 13,020 = 52,080
5 × 10,416 = 52,080
6 × 8,680 = 52,080
7 × 7,440 = 52,080
8 × 6,510 = 52,080
10 × 5,208 = 52,080
12 × 4,340 = 52,080
14 × 3,720 = 52,080
15 × 3,472 = 52,080
16 × 3,255 = 52,080
20 × 2,604 = 52,080
21 × 2,480 = 52,080
24 × 2,170 = 52,080
28 × 1,860 = 52,080
30 × 1,736 = 52,080
31 × 1,680 = 52,080
35 × 1,488 = 52,080
40 × 1,302 = 52,080
42 × 1,240 = 52,080
48 × 1,085 = 52,080
56 × 930 = 52,080
60 × 868 = 52,080
62 × 840 = 52,080
70 × 744 = 52,080
80 × 651 = 52,080
84 × 620 = 52,080
93 × 560 = 52,080
105 × 496 = 52,080
112 × 465 = 52,080
120 × 434 = 52,080
124 × 420 = 52,080
140 × 372 = 52,080
155 × 336 = 52,080
168 × 310 = 52,080
186 × 280 = 52,080
210 × 248 = 52,080
217 × 240 = 52,080
40 unique multiplications The final answer:
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