To find all the divisors of the number 3,412,125:
- 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 3,412,125:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,412,125 = 34 × 53 × 337
3,412,125 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 = (4 + 1) × (3 + 1) × (1 + 1) = 5 × 4 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 3,412,125
- 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
composite factor = 3
2 =
9
composite factor = 3 × 5 =
15
composite factor = 5
2 =
25
composite factor = 3
3 =
27
composite factor = 3
2 × 5 =
45
composite factor = 3 × 5
2 =
75
composite factor = 3
4 =
81
composite factor = 5
3 =
125
composite factor = 3
3 × 5 =
135
composite factor = 3
2 × 5
2 =
225
prime factor =
337
composite factor = 3 × 5
3 =
375
composite factor = 3
4 × 5 =
405
composite factor = 3
3 × 5
2 =
675
composite factor = 3 × 337 =
1,011
composite factor = 3
2 × 5
3 =
1,125
composite factor = 5 × 337 =
1,685
This list continues below...
... This list continues from above
composite factor = 3
4 × 5
2 =
2,025
composite factor = 3
2 × 337 =
3,033
composite factor = 3
3 × 5
3 =
3,375
composite factor = 3 × 5 × 337 =
5,055
composite factor = 5
2 × 337 =
8,425
composite factor = 3
3 × 337 =
9,099
composite factor = 3
4 × 5
3 =
10,125
composite factor = 3
2 × 5 × 337 =
15,165
composite factor = 3 × 5
2 × 337 =
25,275
composite factor = 3
4 × 337 =
27,297
composite factor = 5
3 × 337 =
42,125
composite factor = 3
3 × 5 × 337 =
45,495
composite factor = 3
2 × 5
2 × 337 =
75,825
composite factor = 3 × 5
3 × 337 =
126,375
composite factor = 3
4 × 5 × 337 =
136,485
composite factor = 3
3 × 5
2 × 337 =
227,475
composite factor = 3
2 × 5
3 × 337 =
379,125
composite factor = 3
4 × 5
2 × 337 =
682,425
composite factor = 3
3 × 5
3 × 337 =
1,137,375
composite factor = 3
4 × 5
3 × 337 =
3,412,125
40 factors (divisors)
What times what is 3,412,125?
What number multiplied by what number equals 3,412,125?
All the combinations of any two natural numbers whose product equals 3,412,125.
1 × 3,412,125 = 3,412,125
3 × 1,137,375 = 3,412,125
5 × 682,425 = 3,412,125
9 × 379,125 = 3,412,125
15 × 227,475 = 3,412,125
25 × 136,485 = 3,412,125
27 × 126,375 = 3,412,125
45 × 75,825 = 3,412,125
75 × 45,495 = 3,412,125
81 × 42,125 = 3,412,125
125 × 27,297 = 3,412,125
135 × 25,275 = 3,412,125
225 × 15,165 = 3,412,125
337 × 10,125 = 3,412,125
375 × 9,099 = 3,412,125
405 × 8,425 = 3,412,125
675 × 5,055 = 3,412,125
1,011 × 3,375 = 3,412,125
1,125 × 3,033 = 3,412,125
1,685 × 2,025 = 3,412,125
20 unique multiplications The final answer:
(scroll down)