To find all the divisors of the number 675,675:
- 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 675,675:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
675,675 = 33 × 52 × 7 × 11 × 13
675,675 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 = (3 + 1) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 3 × 2 × 2 × 2 = 96
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 675,675
- 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 =
3
prime factor =
5
prime factor =
7
composite factor = 3
2 =
9
prime factor =
11
prime factor =
13
composite factor = 3 × 5 =
15
composite factor = 3 × 7 =
21
composite factor = 5
2 =
25
composite factor = 3
3 =
27
composite factor = 3 × 11 =
33
composite factor = 5 × 7 =
35
composite factor = 3 × 13 =
39
composite factor = 3
2 × 5 =
45
composite factor = 5 × 11 =
55
composite factor = 3
2 × 7 =
63
composite factor = 5 × 13 =
65
composite factor = 3 × 5
2 =
75
composite factor = 7 × 11 =
77
composite factor = 7 × 13 =
91
composite factor = 3
2 × 11 =
99
composite factor = 3 × 5 × 7 =
105
composite factor = 3
2 × 13 =
117
composite factor = 3
3 × 5 =
135
composite factor = 11 × 13 =
143
composite factor = 3 × 5 × 11 =
165
composite factor = 5
2 × 7 =
175
composite factor = 3
3 × 7 =
189
composite factor = 3 × 5 × 13 =
195
composite factor = 3
2 × 5
2 =
225
composite factor = 3 × 7 × 11 =
231
composite factor = 3 × 7 × 13 =
273
composite factor = 5
2 × 11 =
275
composite factor = 3
3 × 11 =
297
composite factor = 3
2 × 5 × 7 =
315
composite factor = 5
2 × 13 =
325
composite factor = 3
3 × 13 =
351
composite factor = 5 × 7 × 11 =
385
composite factor = 3 × 11 × 13 =
429
composite factor = 5 × 7 × 13 =
455
composite factor = 3
2 × 5 × 11 =
495
composite factor = 3 × 5
2 × 7 =
525
composite factor = 3
2 × 5 × 13 =
585
composite factor = 3
3 × 5
2 =
675
composite factor = 3
2 × 7 × 11 =
693
composite factor = 5 × 11 × 13 =
715
composite factor = 3
2 × 7 × 13 =
819
This list continues below...
... This list continues from above
composite factor = 3 × 5
2 × 11 =
825
composite factor = 3
3 × 5 × 7 =
945
composite factor = 3 × 5
2 × 13 =
975
composite factor = 7 × 11 × 13 =
1,001
composite factor = 3 × 5 × 7 × 11 =
1,155
composite factor = 3
2 × 11 × 13 =
1,287
composite factor = 3 × 5 × 7 × 13 =
1,365
composite factor = 3
3 × 5 × 11 =
1,485
composite factor = 3
2 × 5
2 × 7 =
1,575
composite factor = 3
3 × 5 × 13 =
1,755
composite factor = 5
2 × 7 × 11 =
1,925
composite factor = 3
3 × 7 × 11 =
2,079
composite factor = 3 × 5 × 11 × 13 =
2,145
composite factor = 5
2 × 7 × 13 =
2,275
composite factor = 3
3 × 7 × 13 =
2,457
composite factor = 3
2 × 5
2 × 11 =
2,475
composite factor = 3
2 × 5
2 × 13 =
2,925
composite factor = 3 × 7 × 11 × 13 =
3,003
composite factor = 3
2 × 5 × 7 × 11 =
3,465
composite factor = 5
2 × 11 × 13 =
3,575
composite factor = 3
3 × 11 × 13 =
3,861
composite factor = 3
2 × 5 × 7 × 13 =
4,095
composite factor = 3
3 × 5
2 × 7 =
4,725
composite factor = 5 × 7 × 11 × 13 =
5,005
composite factor = 3 × 5
2 × 7 × 11 =
5,775
composite factor = 3
2 × 5 × 11 × 13 =
6,435
composite factor = 3 × 5
2 × 7 × 13 =
6,825
composite factor = 3
3 × 5
2 × 11 =
7,425
composite factor = 3
3 × 5
2 × 13 =
8,775
composite factor = 3
2 × 7 × 11 × 13 =
9,009
composite factor = 3
3 × 5 × 7 × 11 =
10,395
composite factor = 3 × 5
2 × 11 × 13 =
10,725
composite factor = 3
3 × 5 × 7 × 13 =
12,285
composite factor = 3 × 5 × 7 × 11 × 13 =
15,015
composite factor = 3
2 × 5
2 × 7 × 11 =
17,325
composite factor = 3
3 × 5 × 11 × 13 =
19,305
composite factor = 3
2 × 5
2 × 7 × 13 =
20,475
composite factor = 5
2 × 7 × 11 × 13 =
25,025
composite factor = 3
3 × 7 × 11 × 13 =
27,027
composite factor = 3
2 × 5
2 × 11 × 13 =
32,175
composite factor = 3
2 × 5 × 7 × 11 × 13 =
45,045
composite factor = 3
3 × 5
2 × 7 × 11 =
51,975
composite factor = 3
3 × 5
2 × 7 × 13 =
61,425
composite factor = 3 × 5
2 × 7 × 11 × 13 =
75,075
composite factor = 3
3 × 5
2 × 11 × 13 =
96,525
composite factor = 3
3 × 5 × 7 × 11 × 13 =
135,135
composite factor = 3
2 × 5
2 × 7 × 11 × 13 =
225,225
composite factor = 3
3 × 5
2 × 7 × 11 × 13 =
675,675
96 factors (divisors)
What times what is 675,675?
What number multiplied by what number equals 675,675?
All the combinations of any two natural numbers whose product equals 675,675.
1 × 675,675 = 675,675
3 × 225,225 = 675,675
5 × 135,135 = 675,675
7 × 96,525 = 675,675
9 × 75,075 = 675,675
11 × 61,425 = 675,675
13 × 51,975 = 675,675
15 × 45,045 = 675,675
21 × 32,175 = 675,675
25 × 27,027 = 675,675
27 × 25,025 = 675,675
33 × 20,475 = 675,675
35 × 19,305 = 675,675
39 × 17,325 = 675,675
45 × 15,015 = 675,675
55 × 12,285 = 675,675
63 × 10,725 = 675,675
65 × 10,395 = 675,675
75 × 9,009 = 675,675
77 × 8,775 = 675,675
91 × 7,425 = 675,675
99 × 6,825 = 675,675
105 × 6,435 = 675,675
117 × 5,775 = 675,675
135 × 5,005 = 675,675
143 × 4,725 = 675,675
165 × 4,095 = 675,675
175 × 3,861 = 675,675
189 × 3,575 = 675,675
195 × 3,465 = 675,675
225 × 3,003 = 675,675
231 × 2,925 = 675,675
273 × 2,475 = 675,675
275 × 2,457 = 675,675
297 × 2,275 = 675,675
315 × 2,145 = 675,675
325 × 2,079 = 675,675
351 × 1,925 = 675,675
385 × 1,755 = 675,675
429 × 1,575 = 675,675
455 × 1,485 = 675,675
495 × 1,365 = 675,675
525 × 1,287 = 675,675
585 × 1,155 = 675,675
675 × 1,001 = 675,675
693 × 975 = 675,675
715 × 945 = 675,675
819 × 825 = 675,675
48 unique multiplications The final answer:
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