To find all the divisors of the number 58,500:
- 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 58,500:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
58,500 = 22 × 32 × 53 × 13
58,500 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) × (2 + 1) × (3 + 1) × (1 + 1) = 3 × 3 × 4 × 2 = 72
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 58,500
- 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
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
composite factor = 2
2 × 3 =
12
prime factor =
13
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 2
2 × 5 =
20
composite factor = 5
2 =
25
composite factor = 2 × 13 =
26
composite factor = 2 × 3 × 5 =
30
composite factor = 2
2 × 3
2 =
36
composite factor = 3 × 13 =
39
composite factor = 3
2 × 5 =
45
composite factor = 2 × 5
2 =
50
composite factor = 2
2 × 13 =
52
composite factor = 2
2 × 3 × 5 =
60
composite factor = 5 × 13 =
65
composite factor = 3 × 5
2 =
75
composite factor = 2 × 3 × 13 =
78
composite factor = 2 × 3
2 × 5 =
90
composite factor = 2
2 × 5
2 =
100
composite factor = 3
2 × 13 =
117
composite factor = 5
3 =
125
composite factor = 2 × 5 × 13 =
130
composite factor = 2 × 3 × 5
2 =
150
composite factor = 2
2 × 3 × 13 =
156
composite factor = 2
2 × 3
2 × 5 =
180
composite factor = 3 × 5 × 13 =
195
composite factor = 3
2 × 5
2 =
225
composite factor = 2 × 3
2 × 13 =
234
This list continues below...
... This list continues from above
composite factor = 2 × 5
3 =
250
composite factor = 2
2 × 5 × 13 =
260
composite factor = 2
2 × 3 × 5
2 =
300
composite factor = 5
2 × 13 =
325
composite factor = 3 × 5
3 =
375
composite factor = 2 × 3 × 5 × 13 =
390
composite factor = 2 × 3
2 × 5
2 =
450
composite factor = 2
2 × 3
2 × 13 =
468
composite factor = 2
2 × 5
3 =
500
composite factor = 3
2 × 5 × 13 =
585
composite factor = 2 × 5
2 × 13 =
650
composite factor = 2 × 3 × 5
3 =
750
composite factor = 2
2 × 3 × 5 × 13 =
780
composite factor = 2
2 × 3
2 × 5
2 =
900
composite factor = 3 × 5
2 × 13 =
975
composite factor = 3
2 × 5
3 =
1,125
composite factor = 2 × 3
2 × 5 × 13 =
1,170
composite factor = 2
2 × 5
2 × 13 =
1,300
composite factor = 2
2 × 3 × 5
3 =
1,500
composite factor = 5
3 × 13 =
1,625
composite factor = 2 × 3 × 5
2 × 13 =
1,950
composite factor = 2 × 3
2 × 5
3 =
2,250
composite factor = 2
2 × 3
2 × 5 × 13 =
2,340
composite factor = 3
2 × 5
2 × 13 =
2,925
composite factor = 2 × 5
3 × 13 =
3,250
composite factor = 2
2 × 3 × 5
2 × 13 =
3,900
composite factor = 2
2 × 3
2 × 5
3 =
4,500
composite factor = 3 × 5
3 × 13 =
4,875
composite factor = 2 × 3
2 × 5
2 × 13 =
5,850
composite factor = 2
2 × 5
3 × 13 =
6,500
composite factor = 2 × 3 × 5
3 × 13 =
9,750
composite factor = 2
2 × 3
2 × 5
2 × 13 =
11,700
composite factor = 3
2 × 5
3 × 13 =
14,625
composite factor = 2
2 × 3 × 5
3 × 13 =
19,500
composite factor = 2 × 3
2 × 5
3 × 13 =
29,250
composite factor = 2
2 × 3
2 × 5
3 × 13 =
58,500
72 factors (divisors)
What times what is 58,500?
What number multiplied by what number equals 58,500?
All the combinations of any two natural numbers whose product equals 58,500.
1 × 58,500 = 58,500
2 × 29,250 = 58,500
3 × 19,500 = 58,500
4 × 14,625 = 58,500
5 × 11,700 = 58,500
6 × 9,750 = 58,500
9 × 6,500 = 58,500
10 × 5,850 = 58,500
12 × 4,875 = 58,500
13 × 4,500 = 58,500
15 × 3,900 = 58,500
18 × 3,250 = 58,500
20 × 2,925 = 58,500
25 × 2,340 = 58,500
26 × 2,250 = 58,500
30 × 1,950 = 58,500
36 × 1,625 = 58,500
39 × 1,500 = 58,500
45 × 1,300 = 58,500
50 × 1,170 = 58,500
52 × 1,125 = 58,500
60 × 975 = 58,500
65 × 900 = 58,500
75 × 780 = 58,500
78 × 750 = 58,500
90 × 650 = 58,500
100 × 585 = 58,500
117 × 500 = 58,500
125 × 468 = 58,500
130 × 450 = 58,500
150 × 390 = 58,500
156 × 375 = 58,500
180 × 325 = 58,500
195 × 300 = 58,500
225 × 260 = 58,500
234 × 250 = 58,500
36 unique multiplications The final answer:
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