To find all the divisors of the number 4,811,088:
- 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 4,811,088:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
4,811,088 = 24 × 3 × 113 × 887
4,811,088 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 = (4 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 5 × 2 × 2 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 4,811,088
- 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
2 =
4
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 2
2 × 3 =
12
composite factor = 2
4 =
16
composite factor = 2
3 × 3 =
24
composite factor = 2
4 × 3 =
48
prime factor =
113
composite factor = 2 × 113 =
226
composite factor = 3 × 113 =
339
composite factor = 2
2 × 113 =
452
composite factor = 2 × 3 × 113 =
678
prime factor =
887
composite factor = 2
3 × 113 =
904
composite factor = 2
2 × 3 × 113 =
1,356
composite factor = 2 × 887 =
1,774
composite factor = 2
4 × 113 =
1,808
This list continues below...
... This list continues from above
composite factor = 3 × 887 =
2,661
composite factor = 2
3 × 3 × 113 =
2,712
composite factor = 2
2 × 887 =
3,548
composite factor = 2 × 3 × 887 =
5,322
composite factor = 2
4 × 3 × 113 =
5,424
composite factor = 2
3 × 887 =
7,096
composite factor = 2
2 × 3 × 887 =
10,644
composite factor = 2
4 × 887 =
14,192
composite factor = 2
3 × 3 × 887 =
21,288
composite factor = 2
4 × 3 × 887 =
42,576
composite factor = 113 × 887 =
100,231
composite factor = 2 × 113 × 887 =
200,462
composite factor = 3 × 113 × 887 =
300,693
composite factor = 2
2 × 113 × 887 =
400,924
composite factor = 2 × 3 × 113 × 887 =
601,386
composite factor = 2
3 × 113 × 887 =
801,848
composite factor = 2
2 × 3 × 113 × 887 =
1,202,772
composite factor = 2
4 × 113 × 887 =
1,603,696
composite factor = 2
3 × 3 × 113 × 887 =
2,405,544
composite factor = 2
4 × 3 × 113 × 887 =
4,811,088
40 factors (divisors)
What times what is 4,811,088?
What number multiplied by what number equals 4,811,088?
All the combinations of any two natural numbers whose product equals 4,811,088.
1 × 4,811,088 = 4,811,088
2 × 2,405,544 = 4,811,088
3 × 1,603,696 = 4,811,088
4 × 1,202,772 = 4,811,088
6 × 801,848 = 4,811,088
8 × 601,386 = 4,811,088
12 × 400,924 = 4,811,088
16 × 300,693 = 4,811,088
24 × 200,462 = 4,811,088
48 × 100,231 = 4,811,088
113 × 42,576 = 4,811,088
226 × 21,288 = 4,811,088
339 × 14,192 = 4,811,088
452 × 10,644 = 4,811,088
678 × 7,096 = 4,811,088
887 × 5,424 = 4,811,088
904 × 5,322 = 4,811,088
1,356 × 3,548 = 4,811,088
1,774 × 2,712 = 4,811,088
1,808 × 2,661 = 4,811,088
20 unique multiplications The final answer:
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