To find all the divisors of the number 492,804:
- 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 492,804:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
492,804 = 22 × 36 × 132
492,804 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) × (6 + 1) × (2 + 1) = 3 × 7 × 3 = 63
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 492,804
- 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
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2
2 × 3 =
12
prime factor =
13
composite factor = 2 × 3
2 =
18
composite factor = 2 × 13 =
26
composite factor = 3
3 =
27
composite factor = 2
2 × 3
2 =
36
composite factor = 3 × 13 =
39
composite factor = 2
2 × 13 =
52
composite factor = 2 × 3
3 =
54
composite factor = 2 × 3 × 13 =
78
composite factor = 3
4 =
81
composite factor = 2
2 × 3
3 =
108
composite factor = 3
2 × 13 =
117
composite factor = 2
2 × 3 × 13 =
156
composite factor = 2 × 3
4 =
162
composite factor = 13
2 =
169
composite factor = 2 × 3
2 × 13 =
234
composite factor = 3
5 =
243
composite factor = 2
2 × 3
4 =
324
composite factor = 2 × 13
2 =
338
composite factor = 3
3 × 13 =
351
composite factor = 2
2 × 3
2 × 13 =
468
composite factor = 2 × 3
5 =
486
composite factor = 3 × 13
2 =
507
composite factor = 2
2 × 13
2 =
676
This list continues below...
... This list continues from above
composite factor = 2 × 3
3 × 13 =
702
composite factor = 3
6 =
729
composite factor = 2
2 × 3
5 =
972
composite factor = 2 × 3 × 13
2 =
1,014
composite factor = 3
4 × 13 =
1,053
composite factor = 2
2 × 3
3 × 13 =
1,404
composite factor = 2 × 3
6 =
1,458
composite factor = 3
2 × 13
2 =
1,521
composite factor = 2
2 × 3 × 13
2 =
2,028
composite factor = 2 × 3
4 × 13 =
2,106
composite factor = 2
2 × 3
6 =
2,916
composite factor = 2 × 3
2 × 13
2 =
3,042
composite factor = 3
5 × 13 =
3,159
composite factor = 2
2 × 3
4 × 13 =
4,212
composite factor = 3
3 × 13
2 =
4,563
composite factor = 2
2 × 3
2 × 13
2 =
6,084
composite factor = 2 × 3
5 × 13 =
6,318
composite factor = 2 × 3
3 × 13
2 =
9,126
composite factor = 3
6 × 13 =
9,477
composite factor = 2
2 × 3
5 × 13 =
12,636
composite factor = 3
4 × 13
2 =
13,689
composite factor = 2
2 × 3
3 × 13
2 =
18,252
composite factor = 2 × 3
6 × 13 =
18,954
composite factor = 2 × 3
4 × 13
2 =
27,378
composite factor = 2
2 × 3
6 × 13 =
37,908
composite factor = 3
5 × 13
2 =
41,067
composite factor = 2
2 × 3
4 × 13
2 =
54,756
composite factor = 2 × 3
5 × 13
2 =
82,134
composite factor = 3
6 × 13
2 =
123,201
composite factor = 2
2 × 3
5 × 13
2 =
164,268
composite factor = 2 × 3
6 × 13
2 =
246,402
composite factor = 2
2 × 3
6 × 13
2 =
492,804
63 factors (divisors)
What times what is 492,804?
What number multiplied by what number equals 492,804?
All the combinations of any two natural numbers whose product equals 492,804.
1 × 492,804 = 492,804
2 × 246,402 = 492,804
3 × 164,268 = 492,804
4 × 123,201 = 492,804
6 × 82,134 = 492,804
9 × 54,756 = 492,804
12 × 41,067 = 492,804
13 × 37,908 = 492,804
18 × 27,378 = 492,804
26 × 18,954 = 492,804
27 × 18,252 = 492,804
36 × 13,689 = 492,804
39 × 12,636 = 492,804
52 × 9,477 = 492,804
54 × 9,126 = 492,804
78 × 6,318 = 492,804
81 × 6,084 = 492,804
108 × 4,563 = 492,804
117 × 4,212 = 492,804
156 × 3,159 = 492,804
162 × 3,042 = 492,804
169 × 2,916 = 492,804
234 × 2,106 = 492,804
243 × 2,028 = 492,804
324 × 1,521 = 492,804
338 × 1,458 = 492,804
351 × 1,404 = 492,804
468 × 1,053 = 492,804
486 × 1,014 = 492,804
507 × 972 = 492,804
676 × 729 = 492,804
702 × 702 = 492,804
32 unique multiplications The final answer:
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