To find all the divisors of the number 1,114,290:
- 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 1,114,290:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,114,290 = 2 × 33 × 5 × 4,127
1,114,290 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) × (3 + 1) × (1 + 1) × (1 + 1) = 2 × 4 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,114,290
- 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
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 3
3 =
27
composite factor = 2 × 3 × 5 =
30
composite factor = 3
2 × 5 =
45
composite factor = 2 × 3
3 =
54
composite factor = 2 × 3
2 × 5 =
90
composite factor = 3
3 × 5 =
135
composite factor = 2 × 3
3 × 5 =
270
This list continues below...
... This list continues from above
prime factor =
4,127
composite factor = 2 × 4,127 =
8,254
composite factor = 3 × 4,127 =
12,381
composite factor = 5 × 4,127 =
20,635
composite factor = 2 × 3 × 4,127 =
24,762
composite factor = 3
2 × 4,127 =
37,143
composite factor = 2 × 5 × 4,127 =
41,270
composite factor = 3 × 5 × 4,127 =
61,905
composite factor = 2 × 3
2 × 4,127 =
74,286
composite factor = 3
3 × 4,127 =
111,429
composite factor = 2 × 3 × 5 × 4,127 =
123,810
composite factor = 3
2 × 5 × 4,127 =
185,715
composite factor = 2 × 3
3 × 4,127 =
222,858
composite factor = 2 × 3
2 × 5 × 4,127 =
371,430
composite factor = 3
3 × 5 × 4,127 =
557,145
composite factor = 2 × 3
3 × 5 × 4,127 =
1,114,290
32 factors (divisors)
What times what is 1,114,290?
What number multiplied by what number equals 1,114,290?
All the combinations of any two natural numbers whose product equals 1,114,290.
1 × 1,114,290 = 1,114,290
2 × 557,145 = 1,114,290
3 × 371,430 = 1,114,290
5 × 222,858 = 1,114,290
6 × 185,715 = 1,114,290
9 × 123,810 = 1,114,290
10 × 111,429 = 1,114,290
15 × 74,286 = 1,114,290
18 × 61,905 = 1,114,290
27 × 41,270 = 1,114,290
30 × 37,143 = 1,114,290
45 × 24,762 = 1,114,290
54 × 20,635 = 1,114,290
90 × 12,381 = 1,114,290
135 × 8,254 = 1,114,290
270 × 4,127 = 1,114,290
16 unique multiplications The final answer:
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