To find all the divisors of the number 3,004,938:
- 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 3,004,938:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,004,938 = 2 × 38 × 229
3,004,938 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) × (8 + 1) × (1 + 1) = 2 × 9 × 2 = 36
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 3,004,938
- 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 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 3
2 =
18
composite factor = 3
3 =
27
composite factor = 2 × 3
3 =
54
composite factor = 3
4 =
81
composite factor = 2 × 3
4 =
162
prime factor =
229
composite factor = 3
5 =
243
composite factor = 2 × 229 =
458
composite factor = 2 × 3
5 =
486
composite factor = 3 × 229 =
687
composite factor = 3
6 =
729
composite factor = 2 × 3 × 229 =
1,374
composite factor = 2 × 3
6 =
1,458
This list continues below...
... This list continues from above
composite factor = 3
2 × 229 =
2,061
composite factor = 3
7 =
2,187
composite factor = 2 × 3
2 × 229 =
4,122
composite factor = 2 × 3
7 =
4,374
composite factor = 3
3 × 229 =
6,183
composite factor = 3
8 =
6,561
composite factor = 2 × 3
3 × 229 =
12,366
composite factor = 2 × 3
8 =
13,122
composite factor = 3
4 × 229 =
18,549
composite factor = 2 × 3
4 × 229 =
37,098
composite factor = 3
5 × 229 =
55,647
composite factor = 2 × 3
5 × 229 =
111,294
composite factor = 3
6 × 229 =
166,941
composite factor = 2 × 3
6 × 229 =
333,882
composite factor = 3
7 × 229 =
500,823
composite factor = 2 × 3
7 × 229 =
1,001,646
composite factor = 3
8 × 229 =
1,502,469
composite factor = 2 × 3
8 × 229 =
3,004,938
36 factors (divisors)
What times what is 3,004,938?
What number multiplied by what number equals 3,004,938?
All the combinations of any two natural numbers whose product equals 3,004,938.
1 × 3,004,938 = 3,004,938
2 × 1,502,469 = 3,004,938
3 × 1,001,646 = 3,004,938
6 × 500,823 = 3,004,938
9 × 333,882 = 3,004,938
18 × 166,941 = 3,004,938
27 × 111,294 = 3,004,938
54 × 55,647 = 3,004,938
81 × 37,098 = 3,004,938
162 × 18,549 = 3,004,938
229 × 13,122 = 3,004,938
243 × 12,366 = 3,004,938
458 × 6,561 = 3,004,938
486 × 6,183 = 3,004,938
687 × 4,374 = 3,004,938
729 × 4,122 = 3,004,938
1,374 × 2,187 = 3,004,938
1,458 × 2,061 = 3,004,938
18 unique multiplications The final answer:
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