To find all the divisors of the number 112,914:
- 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 112,914:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
112,914 = 2 × 34 × 17 × 41
112,914 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) × (4 + 1) × (1 + 1) × (1 + 1) = 2 × 5 × 2 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 112,914
- 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
prime factor =
17
composite factor = 2 × 3
2 =
18
composite factor = 3
3 =
27
composite factor = 2 × 17 =
34
prime factor =
41
composite factor = 3 × 17 =
51
composite factor = 2 × 3
3 =
54
composite factor = 3
4 =
81
composite factor = 2 × 41 =
82
composite factor = 2 × 3 × 17 =
102
composite factor = 3 × 41 =
123
composite factor = 3
2 × 17 =
153
composite factor = 2 × 3
4 =
162
composite factor = 2 × 3 × 41 =
246
composite factor = 2 × 3
2 × 17 =
306
This list continues below...
... This list continues from above
composite factor = 3
2 × 41 =
369
composite factor = 3
3 × 17 =
459
composite factor = 17 × 41 =
697
composite factor = 2 × 3
2 × 41 =
738
composite factor = 2 × 3
3 × 17 =
918
composite factor = 3
3 × 41 =
1,107
composite factor = 3
4 × 17 =
1,377
composite factor = 2 × 17 × 41 =
1,394
composite factor = 3 × 17 × 41 =
2,091
composite factor = 2 × 3
3 × 41 =
2,214
composite factor = 2 × 3
4 × 17 =
2,754
composite factor = 3
4 × 41 =
3,321
composite factor = 2 × 3 × 17 × 41 =
4,182
composite factor = 3
2 × 17 × 41 =
6,273
composite factor = 2 × 3
4 × 41 =
6,642
composite factor = 2 × 3
2 × 17 × 41 =
12,546
composite factor = 3
3 × 17 × 41 =
18,819
composite factor = 2 × 3
3 × 17 × 41 =
37,638
composite factor = 3
4 × 17 × 41 =
56,457
composite factor = 2 × 3
4 × 17 × 41 =
112,914
40 factors (divisors)
What times what is 112,914?
What number multiplied by what number equals 112,914?
All the combinations of any two natural numbers whose product equals 112,914.
1 × 112,914 = 112,914
2 × 56,457 = 112,914
3 × 37,638 = 112,914
6 × 18,819 = 112,914
9 × 12,546 = 112,914
17 × 6,642 = 112,914
18 × 6,273 = 112,914
27 × 4,182 = 112,914
34 × 3,321 = 112,914
41 × 2,754 = 112,914
51 × 2,214 = 112,914
54 × 2,091 = 112,914
81 × 1,394 = 112,914
82 × 1,377 = 112,914
102 × 1,107 = 112,914
123 × 918 = 112,914
153 × 738 = 112,914
162 × 697 = 112,914
246 × 459 = 112,914
306 × 369 = 112,914
20 unique multiplications The final answer:
(scroll down)