To find all the divisors of the number 16,946,600:
- 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 16,946,600:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
16,946,600 = 23 × 52 × 11 × 7,703
16,946,600 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 = (3 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 4 × 3 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 16,946,600
- 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
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 2
2 × 5 =
20
composite factor = 2 × 11 =
22
composite factor = 5
2 =
25
composite factor = 2
3 × 5 =
40
composite factor = 2
2 × 11 =
44
composite factor = 2 × 5
2 =
50
composite factor = 5 × 11 =
55
composite factor = 2
3 × 11 =
88
composite factor = 2
2 × 5
2 =
100
composite factor = 2 × 5 × 11 =
110
composite factor = 2
3 × 5
2 =
200
composite factor = 2
2 × 5 × 11 =
220
composite factor = 5
2 × 11 =
275
composite factor = 2
3 × 5 × 11 =
440
composite factor = 2 × 5
2 × 11 =
550
composite factor = 2
2 × 5
2 × 11 =
1,100
composite factor = 2
3 × 5
2 × 11 =
2,200
This list continues below...
... This list continues from above
prime factor =
7,703
composite factor = 2 × 7,703 =
15,406
composite factor = 2
2 × 7,703 =
30,812
composite factor = 5 × 7,703 =
38,515
composite factor = 2
3 × 7,703 =
61,624
composite factor = 2 × 5 × 7,703 =
77,030
composite factor = 11 × 7,703 =
84,733
composite factor = 2
2 × 5 × 7,703 =
154,060
composite factor = 2 × 11 × 7,703 =
169,466
composite factor = 5
2 × 7,703 =
192,575
composite factor = 2
3 × 5 × 7,703 =
308,120
composite factor = 2
2 × 11 × 7,703 =
338,932
composite factor = 2 × 5
2 × 7,703 =
385,150
composite factor = 5 × 11 × 7,703 =
423,665
composite factor = 2
3 × 11 × 7,703 =
677,864
composite factor = 2
2 × 5
2 × 7,703 =
770,300
composite factor = 2 × 5 × 11 × 7,703 =
847,330
composite factor = 2
3 × 5
2 × 7,703 =
1,540,600
composite factor = 2
2 × 5 × 11 × 7,703 =
1,694,660
composite factor = 5
2 × 11 × 7,703 =
2,118,325
composite factor = 2
3 × 5 × 11 × 7,703 =
3,389,320
composite factor = 2 × 5
2 × 11 × 7,703 =
4,236,650
composite factor = 2
2 × 5
2 × 11 × 7,703 =
8,473,300
composite factor = 2
3 × 5
2 × 11 × 7,703 =
16,946,600
48 factors (divisors)
What times what is 16,946,600?
What number multiplied by what number equals 16,946,600?
All the combinations of any two natural numbers whose product equals 16,946,600.
1 × 16,946,600 = 16,946,600
2 × 8,473,300 = 16,946,600
4 × 4,236,650 = 16,946,600
5 × 3,389,320 = 16,946,600
8 × 2,118,325 = 16,946,600
10 × 1,694,660 = 16,946,600
11 × 1,540,600 = 16,946,600
20 × 847,330 = 16,946,600
22 × 770,300 = 16,946,600
25 × 677,864 = 16,946,600
40 × 423,665 = 16,946,600
44 × 385,150 = 16,946,600
50 × 338,932 = 16,946,600
55 × 308,120 = 16,946,600
88 × 192,575 = 16,946,600
100 × 169,466 = 16,946,600
110 × 154,060 = 16,946,600
200 × 84,733 = 16,946,600
220 × 77,030 = 16,946,600
275 × 61,624 = 16,946,600
440 × 38,515 = 16,946,600
550 × 30,812 = 16,946,600
1,100 × 15,406 = 16,946,600
2,200 × 7,703 = 16,946,600
24 unique multiplications The final answer:
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