To find all the divisors of the number 4,662,424:
- 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 4,662,424:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
4,662,424 = 23 × 13 × 127 × 353
4,662,424 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) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 4,662,424
- 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
composite factor = 2
3 =
8
prime factor =
13
composite factor = 2 × 13 =
26
composite factor = 2
2 × 13 =
52
composite factor = 2
3 × 13 =
104
prime factor =
127
composite factor = 2 × 127 =
254
prime factor =
353
composite factor = 2
2 × 127 =
508
composite factor = 2 × 353 =
706
composite factor = 2
3 × 127 =
1,016
composite factor = 2
2 × 353 =
1,412
composite factor = 13 × 127 =
1,651
This list continues below...
... This list continues from above
composite factor = 2
3 × 353 =
2,824
composite factor = 2 × 13 × 127 =
3,302
composite factor = 13 × 353 =
4,589
composite factor = 2
2 × 13 × 127 =
6,604
composite factor = 2 × 13 × 353 =
9,178
composite factor = 2
3 × 13 × 127 =
13,208
composite factor = 2
2 × 13 × 353 =
18,356
composite factor = 2
3 × 13 × 353 =
36,712
composite factor = 127 × 353 =
44,831
composite factor = 2 × 127 × 353 =
89,662
composite factor = 2
2 × 127 × 353 =
179,324
composite factor = 2
3 × 127 × 353 =
358,648
composite factor = 13 × 127 × 353 =
582,803
composite factor = 2 × 13 × 127 × 353 =
1,165,606
composite factor = 2
2 × 13 × 127 × 353 =
2,331,212
composite factor = 2
3 × 13 × 127 × 353 =
4,662,424
32 factors (divisors)
What times what is 4,662,424?
What number multiplied by what number equals 4,662,424?
All the combinations of any two natural numbers whose product equals 4,662,424.
1 × 4,662,424 = 4,662,424
2 × 2,331,212 = 4,662,424
4 × 1,165,606 = 4,662,424
8 × 582,803 = 4,662,424
13 × 358,648 = 4,662,424
26 × 179,324 = 4,662,424
52 × 89,662 = 4,662,424
104 × 44,831 = 4,662,424
127 × 36,712 = 4,662,424
254 × 18,356 = 4,662,424
353 × 13,208 = 4,662,424
508 × 9,178 = 4,662,424
706 × 6,604 = 4,662,424
1,016 × 4,589 = 4,662,424
1,412 × 3,302 = 4,662,424
1,651 × 2,824 = 4,662,424
16 unique multiplications The final answer:
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