To find all the divisors of the number 325,500:
- 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 325,500:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
325,500 = 22 × 3 × 53 × 7 × 31
325,500 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) × (3 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 4 × 2 × 2 = 96
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 325,500
- 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 × 5 =
10
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 3 × 5 =
15
composite factor = 2
2 × 5 =
20
composite factor = 3 × 7 =
21
composite factor = 5
2 =
25
composite factor = 2
2 × 7 =
28
composite factor = 2 × 3 × 5 =
30
prime factor =
31
composite factor = 5 × 7 =
35
composite factor = 2 × 3 × 7 =
42
composite factor = 2 × 5
2 =
50
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2 × 31 =
62
composite factor = 2 × 5 × 7 =
70
composite factor = 3 × 5
2 =
75
composite factor = 2
2 × 3 × 7 =
84
composite factor = 3 × 31 =
93
composite factor = 2
2 × 5
2 =
100
composite factor = 3 × 5 × 7 =
105
composite factor = 2
2 × 31 =
124
composite factor = 5
3 =
125
composite factor = 2
2 × 5 × 7 =
140
composite factor = 2 × 3 × 5
2 =
150
composite factor = 5 × 31 =
155
composite factor = 5
2 × 7 =
175
composite factor = 2 × 3 × 31 =
186
composite factor = 2 × 3 × 5 × 7 =
210
composite factor = 7 × 31 =
217
composite factor = 2 × 5
3 =
250
composite factor = 2
2 × 3 × 5
2 =
300
composite factor = 2 × 5 × 31 =
310
composite factor = 2 × 5
2 × 7 =
350
composite factor = 2
2 × 3 × 31 =
372
composite factor = 3 × 5
3 =
375
composite factor = 2
2 × 3 × 5 × 7 =
420
composite factor = 2 × 7 × 31 =
434
composite factor = 3 × 5 × 31 =
465
composite factor = 2
2 × 5
3 =
500
composite factor = 3 × 5
2 × 7 =
525
This list continues below...
... This list continues from above
composite factor = 2
2 × 5 × 31 =
620
composite factor = 3 × 7 × 31 =
651
composite factor = 2
2 × 5
2 × 7 =
700
composite factor = 2 × 3 × 5
3 =
750
composite factor = 5
2 × 31 =
775
composite factor = 2
2 × 7 × 31 =
868
composite factor = 5
3 × 7 =
875
composite factor = 2 × 3 × 5 × 31 =
930
composite factor = 2 × 3 × 5
2 × 7 =
1,050
composite factor = 5 × 7 × 31 =
1,085
composite factor = 2 × 3 × 7 × 31 =
1,302
composite factor = 2
2 × 3 × 5
3 =
1,500
composite factor = 2 × 5
2 × 31 =
1,550
composite factor = 2 × 5
3 × 7 =
1,750
composite factor = 2
2 × 3 × 5 × 31 =
1,860
composite factor = 2
2 × 3 × 5
2 × 7 =
2,100
composite factor = 2 × 5 × 7 × 31 =
2,170
composite factor = 3 × 5
2 × 31 =
2,325
composite factor = 2
2 × 3 × 7 × 31 =
2,604
composite factor = 3 × 5
3 × 7 =
2,625
composite factor = 2
2 × 5
2 × 31 =
3,100
composite factor = 3 × 5 × 7 × 31 =
3,255
composite factor = 2
2 × 5
3 × 7 =
3,500
composite factor = 5
3 × 31 =
3,875
composite factor = 2
2 × 5 × 7 × 31 =
4,340
composite factor = 2 × 3 × 5
2 × 31 =
4,650
composite factor = 2 × 3 × 5
3 × 7 =
5,250
composite factor = 5
2 × 7 × 31 =
5,425
composite factor = 2 × 3 × 5 × 7 × 31 =
6,510
composite factor = 2 × 5
3 × 31 =
7,750
composite factor = 2
2 × 3 × 5
2 × 31 =
9,300
composite factor = 2
2 × 3 × 5
3 × 7 =
10,500
composite factor = 2 × 5
2 × 7 × 31 =
10,850
composite factor = 3 × 5
3 × 31 =
11,625
composite factor = 2
2 × 3 × 5 × 7 × 31 =
13,020
composite factor = 2
2 × 5
3 × 31 =
15,500
composite factor = 3 × 5
2 × 7 × 31 =
16,275
composite factor = 2
2 × 5
2 × 7 × 31 =
21,700
composite factor = 2 × 3 × 5
3 × 31 =
23,250
composite factor = 5
3 × 7 × 31 =
27,125
composite factor = 2 × 3 × 5
2 × 7 × 31 =
32,550
composite factor = 2
2 × 3 × 5
3 × 31 =
46,500
composite factor = 2 × 5
3 × 7 × 31 =
54,250
composite factor = 2
2 × 3 × 5
2 × 7 × 31 =
65,100
composite factor = 3 × 5
3 × 7 × 31 =
81,375
composite factor = 2
2 × 5
3 × 7 × 31 =
108,500
composite factor = 2 × 3 × 5
3 × 7 × 31 =
162,750
composite factor = 2
2 × 3 × 5
3 × 7 × 31 =
325,500
96 factors (divisors)
What times what is 325,500?
What number multiplied by what number equals 325,500?
All the combinations of any two natural numbers whose product equals 325,500.
1 × 325,500 = 325,500
2 × 162,750 = 325,500
3 × 108,500 = 325,500
4 × 81,375 = 325,500
5 × 65,100 = 325,500
6 × 54,250 = 325,500
7 × 46,500 = 325,500
10 × 32,550 = 325,500
12 × 27,125 = 325,500
14 × 23,250 = 325,500
15 × 21,700 = 325,500
20 × 16,275 = 325,500
21 × 15,500 = 325,500
25 × 13,020 = 325,500
28 × 11,625 = 325,500
30 × 10,850 = 325,500
31 × 10,500 = 325,500
35 × 9,300 = 325,500
42 × 7,750 = 325,500
50 × 6,510 = 325,500
60 × 5,425 = 325,500
62 × 5,250 = 325,500
70 × 4,650 = 325,500
75 × 4,340 = 325,500
84 × 3,875 = 325,500
93 × 3,500 = 325,500
100 × 3,255 = 325,500
105 × 3,100 = 325,500
124 × 2,625 = 325,500
125 × 2,604 = 325,500
140 × 2,325 = 325,500
150 × 2,170 = 325,500
155 × 2,100 = 325,500
175 × 1,860 = 325,500
186 × 1,750 = 325,500
210 × 1,550 = 325,500
217 × 1,500 = 325,500
250 × 1,302 = 325,500
300 × 1,085 = 325,500
310 × 1,050 = 325,500
350 × 930 = 325,500
372 × 875 = 325,500
375 × 868 = 325,500
420 × 775 = 325,500
434 × 750 = 325,500
465 × 700 = 325,500
500 × 651 = 325,500
525 × 620 = 325,500
48 unique multiplications The final answer:
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