To find all the divisors of the number 16,632,850:
- 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 16,632,850:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
16,632,850 = 2 × 52 × 13 × 25,589
16,632,850 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) × (2 + 1) × (1 + 1) × (1 + 1) = 2 × 3 × 2 × 2 = 24
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 16,632,850
- 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 =
5
composite factor = 2 × 5 =
10
prime factor =
13
composite factor = 5
2 =
25
composite factor = 2 × 13 =
26
composite factor = 2 × 5
2 =
50
composite factor = 5 × 13 =
65
composite factor = 2 × 5 × 13 =
130
composite factor = 5
2 × 13 =
325
composite factor = 2 × 5
2 × 13 =
650
This list continues below...
... This list continues from above
prime factor =
25,589
composite factor = 2 × 25,589 =
51,178
composite factor = 5 × 25,589 =
127,945
composite factor = 2 × 5 × 25,589 =
255,890
composite factor = 13 × 25,589 =
332,657
composite factor = 5
2 × 25,589 =
639,725
composite factor = 2 × 13 × 25,589 =
665,314
composite factor = 2 × 5
2 × 25,589 =
1,279,450
composite factor = 5 × 13 × 25,589 =
1,663,285
composite factor = 2 × 5 × 13 × 25,589 =
3,326,570
composite factor = 5
2 × 13 × 25,589 =
8,316,425
composite factor = 2 × 5
2 × 13 × 25,589 =
16,632,850
24 factors (divisors)
What times what is 16,632,850?
What number multiplied by what number equals 16,632,850?
All the combinations of any two natural numbers whose product equals 16,632,850.
1 × 16,632,850 = 16,632,850
2 × 8,316,425 = 16,632,850
5 × 3,326,570 = 16,632,850
10 × 1,663,285 = 16,632,850
13 × 1,279,450 = 16,632,850
25 × 665,314 = 16,632,850
26 × 639,725 = 16,632,850
50 × 332,657 = 16,632,850
65 × 255,890 = 16,632,850
130 × 127,945 = 16,632,850
325 × 51,178 = 16,632,850
650 × 25,589 = 16,632,850
12 unique multiplications The final answer:
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