To find all the divisors of the number 242,550:
- 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 242,550:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
242,550 = 2 × 32 × 52 × 72 × 11
242,550 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 = (1 + 1) × (2 + 1) × (2 + 1) × (2 + 1) × (1 + 1) = 2 × 3 × 3 × 3 × 2 = 108
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 242,550
- 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
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 × 7 =
14
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 3 × 7 =
21
composite factor = 2 × 11 =
22
composite factor = 5
2 =
25
composite factor = 2 × 3 × 5 =
30
composite factor = 3 × 11 =
33
composite factor = 5 × 7 =
35
composite factor = 2 × 3 × 7 =
42
composite factor = 3
2 × 5 =
45
composite factor = 7
2 =
49
composite factor = 2 × 5
2 =
50
composite factor = 5 × 11 =
55
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 × 3
2 × 5 =
90
composite factor = 2 × 7
2 =
98
composite factor = 3
2 × 11 =
99
composite factor = 3 × 5 × 7 =
105
composite factor = 2 × 5 × 11 =
110
composite factor = 2 × 3
2 × 7 =
126
composite factor = 3 × 7
2 =
147
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 × 3
2 × 11 =
198
composite factor = 2 × 3 × 5 × 7 =
210
composite factor = 3
2 × 5
2 =
225
composite factor = 3 × 7 × 11 =
231
composite factor = 5 × 7
2 =
245
composite factor = 5
2 × 11 =
275
composite factor = 2 × 3 × 7
2 =
294
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 = 3
2 × 7
2 =
441
composite factor = 2 × 3
2 × 5
2 =
450
composite factor = 2 × 3 × 7 × 11 =
462
composite factor = 2 × 5 × 7
2 =
490
This list continues below...
... This list continues from above
composite factor = 3
2 × 5 × 11 =
495
composite factor = 3 × 5
2 × 7 =
525
composite factor = 7
2 × 11 =
539
composite factor = 2 × 5
2 × 11 =
550
composite factor = 2 × 3
2 × 5 × 7 =
630
composite factor = 3
2 × 7 × 11 =
693
composite factor = 3 × 5 × 7
2 =
735
composite factor = 2 × 5 × 7 × 11 =
770
composite factor = 3 × 5
2 × 11 =
825
composite factor = 2 × 3
2 × 7
2 =
882
composite factor = 2 × 3
2 × 5 × 11 =
990
composite factor = 2 × 3 × 5
2 × 7 =
1,050
composite factor = 2 × 7
2 × 11 =
1,078
composite factor = 3 × 5 × 7 × 11 =
1,155
composite factor = 5
2 × 7
2 =
1,225
composite factor = 2 × 3
2 × 7 × 11 =
1,386
composite factor = 2 × 3 × 5 × 7
2 =
1,470
composite factor = 3
2 × 5
2 × 7 =
1,575
composite factor = 3 × 7
2 × 11 =
1,617
composite factor = 2 × 3 × 5
2 × 11 =
1,650
composite factor = 5
2 × 7 × 11 =
1,925
composite factor = 3
2 × 5 × 7
2 =
2,205
composite factor = 2 × 3 × 5 × 7 × 11 =
2,310
composite factor = 2 × 5
2 × 7
2 =
2,450
composite factor = 3
2 × 5
2 × 11 =
2,475
composite factor = 5 × 7
2 × 11 =
2,695
composite factor = 2 × 3
2 × 5
2 × 7 =
3,150
composite factor = 2 × 3 × 7
2 × 11 =
3,234
composite factor = 3
2 × 5 × 7 × 11 =
3,465
composite factor = 3 × 5
2 × 7
2 =
3,675
composite factor = 2 × 5
2 × 7 × 11 =
3,850
composite factor = 2 × 3
2 × 5 × 7
2 =
4,410
composite factor = 3
2 × 7
2 × 11 =
4,851
composite factor = 2 × 3
2 × 5
2 × 11 =
4,950
composite factor = 2 × 5 × 7
2 × 11 =
5,390
composite factor = 3 × 5
2 × 7 × 11 =
5,775
composite factor = 2 × 3
2 × 5 × 7 × 11 =
6,930
composite factor = 2 × 3 × 5
2 × 7
2 =
7,350
composite factor = 3 × 5 × 7
2 × 11 =
8,085
composite factor = 2 × 3
2 × 7
2 × 11 =
9,702
composite factor = 3
2 × 5
2 × 7
2 =
11,025
composite factor = 2 × 3 × 5
2 × 7 × 11 =
11,550
composite factor = 5
2 × 7
2 × 11 =
13,475
composite factor = 2 × 3 × 5 × 7
2 × 11 =
16,170
composite factor = 3
2 × 5
2 × 7 × 11 =
17,325
composite factor = 2 × 3
2 × 5
2 × 7
2 =
22,050
composite factor = 3
2 × 5 × 7
2 × 11 =
24,255
composite factor = 2 × 5
2 × 7
2 × 11 =
26,950
composite factor = 2 × 3
2 × 5
2 × 7 × 11 =
34,650
composite factor = 3 × 5
2 × 7
2 × 11 =
40,425
composite factor = 2 × 3
2 × 5 × 7
2 × 11 =
48,510
composite factor = 2 × 3 × 5
2 × 7
2 × 11 =
80,850
composite factor = 3
2 × 5
2 × 7
2 × 11 =
121,275
composite factor = 2 × 3
2 × 5
2 × 7
2 × 11 =
242,550
108 factors (divisors)
What times what is 242,550?
What number multiplied by what number equals 242,550?
All the combinations of any two natural numbers whose product equals 242,550.
1 × 242,550 = 242,550
2 × 121,275 = 242,550
3 × 80,850 = 242,550
5 × 48,510 = 242,550
6 × 40,425 = 242,550
7 × 34,650 = 242,550
9 × 26,950 = 242,550
10 × 24,255 = 242,550
11 × 22,050 = 242,550
14 × 17,325 = 242,550
15 × 16,170 = 242,550
18 × 13,475 = 242,550
21 × 11,550 = 242,550
22 × 11,025 = 242,550
25 × 9,702 = 242,550
30 × 8,085 = 242,550
33 × 7,350 = 242,550
35 × 6,930 = 242,550
42 × 5,775 = 242,550
45 × 5,390 = 242,550
49 × 4,950 = 242,550
50 × 4,851 = 242,550
55 × 4,410 = 242,550
63 × 3,850 = 242,550
66 × 3,675 = 242,550
70 × 3,465 = 242,550
75 × 3,234 = 242,550
77 × 3,150 = 242,550
90 × 2,695 = 242,550
98 × 2,475 = 242,550
99 × 2,450 = 242,550
105 × 2,310 = 242,550
110 × 2,205 = 242,550
126 × 1,925 = 242,550
147 × 1,650 = 242,550
150 × 1,617 = 242,550
154 × 1,575 = 242,550
165 × 1,470 = 242,550
175 × 1,386 = 242,550
198 × 1,225 = 242,550
210 × 1,155 = 242,550
225 × 1,078 = 242,550
231 × 1,050 = 242,550
245 × 990 = 242,550
275 × 882 = 242,550
294 × 825 = 242,550
315 × 770 = 242,550
330 × 735 = 242,550
350 × 693 = 242,550
385 × 630 = 242,550
441 × 550 = 242,550
450 × 539 = 242,550
462 × 525 = 242,550
490 × 495 = 242,550
54 unique multiplications The final answer:
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