To find all the divisors of the number 33,759,579:
- 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 33,759,579:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
33,759,579 = 3 × 72 × 179 × 1,283
33,759,579 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 33,759,579
- 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 =
7
composite factor = 3 × 7 =
21
composite factor = 7
2 =
49
composite factor = 3 × 7
2 =
147
prime factor =
179
composite factor = 3 × 179 =
537
composite factor = 7 × 179 =
1,253
prime factor =
1,283
composite factor = 3 × 7 × 179 =
3,759
composite factor = 3 × 1,283 =
3,849
This list continues below...
... This list continues from above
composite factor = 7
2 × 179 =
8,771
composite factor = 7 × 1,283 =
8,981
composite factor = 3 × 7
2 × 179 =
26,313
composite factor = 3 × 7 × 1,283 =
26,943
composite factor = 7
2 × 1,283 =
62,867
composite factor = 3 × 7
2 × 1,283 =
188,601
composite factor = 179 × 1,283 =
229,657
composite factor = 3 × 179 × 1,283 =
688,971
composite factor = 7 × 179 × 1,283 =
1,607,599
composite factor = 3 × 7 × 179 × 1,283 =
4,822,797
composite factor = 7
2 × 179 × 1,283 =
11,253,193
composite factor = 3 × 7
2 × 179 × 1,283 =
33,759,579
24 factors (divisors)
What times what is 33,759,579?
What number multiplied by what number equals 33,759,579?
All the combinations of any two natural numbers whose product equals 33,759,579.
1 × 33,759,579 = 33,759,579
3 × 11,253,193 = 33,759,579
7 × 4,822,797 = 33,759,579
21 × 1,607,599 = 33,759,579
49 × 688,971 = 33,759,579
147 × 229,657 = 33,759,579
179 × 188,601 = 33,759,579
537 × 62,867 = 33,759,579
1,253 × 26,943 = 33,759,579
1,283 × 26,313 = 33,759,579
3,759 × 8,981 = 33,759,579
3,849 × 8,771 = 33,759,579
12 unique multiplications The final answer:
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