To find all the divisors of the number 342,804:
- 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 342,804:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
342,804 = 22 × 3 × 72 × 11 × 53
342,804 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) × (1 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 3 × 2 × 2 = 72
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 342,804
- 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
prime factor =
7
prime factor =
11
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 3 × 7 =
21
composite factor = 2 × 11 =
22
composite factor = 2
2 × 7 =
28
composite factor = 3 × 11 =
33
composite factor = 2 × 3 × 7 =
42
composite factor = 2
2 × 11 =
44
composite factor = 7
2 =
49
prime factor =
53
composite factor = 2 × 3 × 11 =
66
composite factor = 7 × 11 =
77
composite factor = 2
2 × 3 × 7 =
84
composite factor = 2 × 7
2 =
98
composite factor = 2 × 53 =
106
composite factor = 2
2 × 3 × 11 =
132
composite factor = 3 × 7
2 =
147
composite factor = 2 × 7 × 11 =
154
composite factor = 3 × 53 =
159
composite factor = 2
2 × 7
2 =
196
composite factor = 2
2 × 53 =
212
composite factor = 3 × 7 × 11 =
231
composite factor = 2 × 3 × 7
2 =
294
composite factor = 2
2 × 7 × 11 =
308
composite factor = 2 × 3 × 53 =
318
composite factor = 7 × 53 =
371
composite factor = 2 × 3 × 7 × 11 =
462
composite factor = 7
2 × 11 =
539
composite factor = 11 × 53 =
583
This list continues below...
... This list continues from above
composite factor = 2
2 × 3 × 7
2 =
588
composite factor = 2
2 × 3 × 53 =
636
composite factor = 2 × 7 × 53 =
742
composite factor = 2
2 × 3 × 7 × 11 =
924
composite factor = 2 × 7
2 × 11 =
1,078
composite factor = 3 × 7 × 53 =
1,113
composite factor = 2 × 11 × 53 =
1,166
composite factor = 2
2 × 7 × 53 =
1,484
composite factor = 3 × 7
2 × 11 =
1,617
composite factor = 3 × 11 × 53 =
1,749
composite factor = 2
2 × 7
2 × 11 =
2,156
composite factor = 2 × 3 × 7 × 53 =
2,226
composite factor = 2
2 × 11 × 53 =
2,332
composite factor = 7
2 × 53 =
2,597
composite factor = 2 × 3 × 7
2 × 11 =
3,234
composite factor = 2 × 3 × 11 × 53 =
3,498
composite factor = 7 × 11 × 53 =
4,081
composite factor = 2
2 × 3 × 7 × 53 =
4,452
composite factor = 2 × 7
2 × 53 =
5,194
composite factor = 2
2 × 3 × 7
2 × 11 =
6,468
composite factor = 2
2 × 3 × 11 × 53 =
6,996
composite factor = 3 × 7
2 × 53 =
7,791
composite factor = 2 × 7 × 11 × 53 =
8,162
composite factor = 2
2 × 7
2 × 53 =
10,388
composite factor = 3 × 7 × 11 × 53 =
12,243
composite factor = 2 × 3 × 7
2 × 53 =
15,582
composite factor = 2
2 × 7 × 11 × 53 =
16,324
composite factor = 2 × 3 × 7 × 11 × 53 =
24,486
composite factor = 7
2 × 11 × 53 =
28,567
composite factor = 2
2 × 3 × 7
2 × 53 =
31,164
composite factor = 2
2 × 3 × 7 × 11 × 53 =
48,972
composite factor = 2 × 7
2 × 11 × 53 =
57,134
composite factor = 3 × 7
2 × 11 × 53 =
85,701
composite factor = 2
2 × 7
2 × 11 × 53 =
114,268
composite factor = 2 × 3 × 7
2 × 11 × 53 =
171,402
composite factor = 2
2 × 3 × 7
2 × 11 × 53 =
342,804
72 factors (divisors)
What times what is 342,804?
What number multiplied by what number equals 342,804?
All the combinations of any two natural numbers whose product equals 342,804.
1 × 342,804 = 342,804
2 × 171,402 = 342,804
3 × 114,268 = 342,804
4 × 85,701 = 342,804
6 × 57,134 = 342,804
7 × 48,972 = 342,804
11 × 31,164 = 342,804
12 × 28,567 = 342,804
14 × 24,486 = 342,804
21 × 16,324 = 342,804
22 × 15,582 = 342,804
28 × 12,243 = 342,804
33 × 10,388 = 342,804
42 × 8,162 = 342,804
44 × 7,791 = 342,804
49 × 6,996 = 342,804
53 × 6,468 = 342,804
66 × 5,194 = 342,804
77 × 4,452 = 342,804
84 × 4,081 = 342,804
98 × 3,498 = 342,804
106 × 3,234 = 342,804
132 × 2,597 = 342,804
147 × 2,332 = 342,804
154 × 2,226 = 342,804
159 × 2,156 = 342,804
196 × 1,749 = 342,804
212 × 1,617 = 342,804
231 × 1,484 = 342,804
294 × 1,166 = 342,804
308 × 1,113 = 342,804
318 × 1,078 = 342,804
371 × 924 = 342,804
462 × 742 = 342,804
539 × 636 = 342,804
583 × 588 = 342,804
36 unique multiplications The final answer:
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