To find all the divisors of the number 69,300:
- 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 69,300:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
69,300 = 22 × 32 × 52 × 7 × 11
69,300 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) × (2 + 1) × (1 + 1) × (1 + 1) = 3 × 3 × 3 × 2 × 2 = 108
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 69,300
- 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 = 3
2 =
9
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 2
2 × 5 =
20
composite factor = 3 × 7 =
21
composite factor = 2 × 11 =
22
composite factor = 5
2 =
25
composite factor = 2
2 × 7 =
28
composite factor = 2 × 3 × 5 =
30
composite factor = 3 × 11 =
33
composite factor = 5 × 7 =
35
composite factor = 2
2 × 3
2 =
36
composite factor = 2 × 3 × 7 =
42
composite factor = 2
2 × 11 =
44
composite factor = 3
2 × 5 =
45
composite factor = 2 × 5
2 =
50
composite factor = 5 × 11 =
55
composite factor = 2
2 × 3 × 5 =
60
composite factor = 3
2 × 7 =
63
composite factor = 2 × 3 × 11 =
66
composite factor = 2 × 5 × 7 =
70
composite factor = 3 × 5
2 =
75
composite factor = 7 × 11 =
77
composite factor = 2
2 × 3 × 7 =
84
composite factor = 2 × 3
2 × 5 =
90
composite factor = 3
2 × 11 =
99
composite factor = 2
2 × 5
2 =
100
composite factor = 3 × 5 × 7 =
105
composite factor = 2 × 5 × 11 =
110
composite factor = 2 × 3
2 × 7 =
126
composite factor = 2
2 × 3 × 11 =
132
composite factor = 2
2 × 5 × 7 =
140
composite factor = 2 × 3 × 5
2 =
150
composite factor = 2 × 7 × 11 =
154
composite factor = 3 × 5 × 11 =
165
composite factor = 5
2 × 7 =
175
composite factor = 2
2 × 3
2 × 5 =
180
composite factor = 2 × 3
2 × 11 =
198
composite factor = 2 × 3 × 5 × 7 =
210
composite factor = 2
2 × 5 × 11 =
220
composite factor = 3
2 × 5
2 =
225
composite factor = 3 × 7 × 11 =
231
composite factor = 2
2 × 3
2 × 7 =
252
This list continues below...
... This list continues from above
composite factor = 5
2 × 11 =
275
composite factor = 2
2 × 3 × 5
2 =
300
composite factor = 2
2 × 7 × 11 =
308
composite factor = 3
2 × 5 × 7 =
315
composite factor = 2 × 3 × 5 × 11 =
330
composite factor = 2 × 5
2 × 7 =
350
composite factor = 5 × 7 × 11 =
385
composite factor = 2
2 × 3
2 × 11 =
396
composite factor = 2
2 × 3 × 5 × 7 =
420
composite factor = 2 × 3
2 × 5
2 =
450
composite factor = 2 × 3 × 7 × 11 =
462
composite factor = 3
2 × 5 × 11 =
495
composite factor = 3 × 5
2 × 7 =
525
composite factor = 2 × 5
2 × 11 =
550
composite factor = 2 × 3
2 × 5 × 7 =
630
composite factor = 2
2 × 3 × 5 × 11 =
660
composite factor = 3
2 × 7 × 11 =
693
composite factor = 2
2 × 5
2 × 7 =
700
composite factor = 2 × 5 × 7 × 11 =
770
composite factor = 3 × 5
2 × 11 =
825
composite factor = 2
2 × 3
2 × 5
2 =
900
composite factor = 2
2 × 3 × 7 × 11 =
924
composite factor = 2 × 3
2 × 5 × 11 =
990
composite factor = 2 × 3 × 5
2 × 7 =
1,050
composite factor = 2
2 × 5
2 × 11 =
1,100
composite factor = 3 × 5 × 7 × 11 =
1,155
composite factor = 2
2 × 3
2 × 5 × 7 =
1,260
composite factor = 2 × 3
2 × 7 × 11 =
1,386
composite factor = 2
2 × 5 × 7 × 11 =
1,540
composite factor = 3
2 × 5
2 × 7 =
1,575
composite factor = 2 × 3 × 5
2 × 11 =
1,650
composite factor = 5
2 × 7 × 11 =
1,925
composite factor = 2
2 × 3
2 × 5 × 11 =
1,980
composite factor = 2
2 × 3 × 5
2 × 7 =
2,100
composite factor = 2 × 3 × 5 × 7 × 11 =
2,310
composite factor = 3
2 × 5
2 × 11 =
2,475
composite factor = 2
2 × 3
2 × 7 × 11 =
2,772
composite factor = 2 × 3
2 × 5
2 × 7 =
3,150
composite factor = 2
2 × 3 × 5
2 × 11 =
3,300
composite factor = 3
2 × 5 × 7 × 11 =
3,465
composite factor = 2 × 5
2 × 7 × 11 =
3,850
composite factor = 2
2 × 3 × 5 × 7 × 11 =
4,620
composite factor = 2 × 3
2 × 5
2 × 11 =
4,950
composite factor = 3 × 5
2 × 7 × 11 =
5,775
composite factor = 2
2 × 3
2 × 5
2 × 7 =
6,300
composite factor = 2 × 3
2 × 5 × 7 × 11 =
6,930
composite factor = 2
2 × 5
2 × 7 × 11 =
7,700
composite factor = 2
2 × 3
2 × 5
2 × 11 =
9,900
composite factor = 2 × 3 × 5
2 × 7 × 11 =
11,550
composite factor = 2
2 × 3
2 × 5 × 7 × 11 =
13,860
composite factor = 3
2 × 5
2 × 7 × 11 =
17,325
composite factor = 2
2 × 3 × 5
2 × 7 × 11 =
23,100
composite factor = 2 × 3
2 × 5
2 × 7 × 11 =
34,650
composite factor = 2
2 × 3
2 × 5
2 × 7 × 11 =
69,300
108 factors (divisors)
What times what is 69,300?
What number multiplied by what number equals 69,300?
All the combinations of any two natural numbers whose product equals 69,300.
1 × 69,300 = 69,300
2 × 34,650 = 69,300
3 × 23,100 = 69,300
4 × 17,325 = 69,300
5 × 13,860 = 69,300
6 × 11,550 = 69,300
7 × 9,900 = 69,300
9 × 7,700 = 69,300
10 × 6,930 = 69,300
11 × 6,300 = 69,300
12 × 5,775 = 69,300
14 × 4,950 = 69,300
15 × 4,620 = 69,300
18 × 3,850 = 69,300
20 × 3,465 = 69,300
21 × 3,300 = 69,300
22 × 3,150 = 69,300
25 × 2,772 = 69,300
28 × 2,475 = 69,300
30 × 2,310 = 69,300
33 × 2,100 = 69,300
35 × 1,980 = 69,300
36 × 1,925 = 69,300
42 × 1,650 = 69,300
44 × 1,575 = 69,300
45 × 1,540 = 69,300
50 × 1,386 = 69,300
55 × 1,260 = 69,300
60 × 1,155 = 69,300
63 × 1,100 = 69,300
66 × 1,050 = 69,300
70 × 990 = 69,300
75 × 924 = 69,300
77 × 900 = 69,300
84 × 825 = 69,300
90 × 770 = 69,300
99 × 700 = 69,300
100 × 693 = 69,300
105 × 660 = 69,300
110 × 630 = 69,300
126 × 550 = 69,300
132 × 525 = 69,300
140 × 495 = 69,300
150 × 462 = 69,300
154 × 450 = 69,300
165 × 420 = 69,300
175 × 396 = 69,300
180 × 385 = 69,300
198 × 350 = 69,300
210 × 330 = 69,300
220 × 315 = 69,300
225 × 308 = 69,300
231 × 300 = 69,300
252 × 275 = 69,300
54 unique multiplications The final answer:
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