To find all the divisors of the number 4,662,438:
- 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 4,662,438:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
4,662,438 = 2 × 3 × 11 × 41 × 1,723
4,662,438 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) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 4,662,438
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- 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 × 3 =
6
prime factor =
11
composite factor = 2 × 11 =
22
composite factor = 3 × 11 =
33
prime factor =
41
composite factor = 2 × 3 × 11 =
66
composite factor = 2 × 41 =
82
composite factor = 3 × 41 =
123
composite factor = 2 × 3 × 41 =
246
composite factor = 11 × 41 =
451
composite factor = 2 × 11 × 41 =
902
composite factor = 3 × 11 × 41 =
1,353
prime factor =
1,723
This list continues below...
... This list continues from above
composite factor = 2 × 3 × 11 × 41 =
2,706
composite factor = 2 × 1,723 =
3,446
composite factor = 3 × 1,723 =
5,169
composite factor = 2 × 3 × 1,723 =
10,338
composite factor = 11 × 1,723 =
18,953
composite factor = 2 × 11 × 1,723 =
37,906
composite factor = 3 × 11 × 1,723 =
56,859
composite factor = 41 × 1,723 =
70,643
composite factor = 2 × 3 × 11 × 1,723 =
113,718
composite factor = 2 × 41 × 1,723 =
141,286
composite factor = 3 × 41 × 1,723 =
211,929
composite factor = 2 × 3 × 41 × 1,723 =
423,858
composite factor = 11 × 41 × 1,723 =
777,073
composite factor = 2 × 11 × 41 × 1,723 =
1,554,146
composite factor = 3 × 11 × 41 × 1,723 =
2,331,219
composite factor = 2 × 3 × 11 × 41 × 1,723 =
4,662,438
32 factors (divisors)
What times what is 4,662,438?
What number multiplied by what number equals 4,662,438?
All the combinations of any two natural numbers whose product equals 4,662,438.
1 × 4,662,438 = 4,662,438
2 × 2,331,219 = 4,662,438
3 × 1,554,146 = 4,662,438
6 × 777,073 = 4,662,438
11 × 423,858 = 4,662,438
22 × 211,929 = 4,662,438
33 × 141,286 = 4,662,438
41 × 113,718 = 4,662,438
66 × 70,643 = 4,662,438
82 × 56,859 = 4,662,438
123 × 37,906 = 4,662,438
246 × 18,953 = 4,662,438
451 × 10,338 = 4,662,438
902 × 5,169 = 4,662,438
1,353 × 3,446 = 4,662,438
1,723 × 2,706 = 4,662,438
16 unique multiplications The final answer:
(scroll down)