To find all the divisors of the number 467,992:
- 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 467,992:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
467,992 = 23 × 7 × 61 × 137
467,992 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 467,992
- 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
prime factor =
7
composite factor = 2
3 =
8
composite factor = 2 × 7 =
14
composite factor = 2
2 × 7 =
28
composite factor = 2
3 × 7 =
56
prime factor =
61
composite factor = 2 × 61 =
122
prime factor =
137
composite factor = 2
2 × 61 =
244
composite factor = 2 × 137 =
274
composite factor = 7 × 61 =
427
composite factor = 2
3 × 61 =
488
composite factor = 2
2 × 137 =
548
This list continues below...
... This list continues from above
composite factor = 2 × 7 × 61 =
854
composite factor = 7 × 137 =
959
composite factor = 2
3 × 137 =
1,096
composite factor = 2
2 × 7 × 61 =
1,708
composite factor = 2 × 7 × 137 =
1,918
composite factor = 2
3 × 7 × 61 =
3,416
composite factor = 2
2 × 7 × 137 =
3,836
composite factor = 2
3 × 7 × 137 =
7,672
composite factor = 61 × 137 =
8,357
composite factor = 2 × 61 × 137 =
16,714
composite factor = 2
2 × 61 × 137 =
33,428
composite factor = 7 × 61 × 137 =
58,499
composite factor = 2
3 × 61 × 137 =
66,856
composite factor = 2 × 7 × 61 × 137 =
116,998
composite factor = 2
2 × 7 × 61 × 137 =
233,996
composite factor = 2
3 × 7 × 61 × 137 =
467,992
32 factors (divisors)
What times what is 467,992?
What number multiplied by what number equals 467,992?
All the combinations of any two natural numbers whose product equals 467,992.
1 × 467,992 = 467,992
2 × 233,996 = 467,992
4 × 116,998 = 467,992
7 × 66,856 = 467,992
8 × 58,499 = 467,992
14 × 33,428 = 467,992
28 × 16,714 = 467,992
56 × 8,357 = 467,992
61 × 7,672 = 467,992
122 × 3,836 = 467,992
137 × 3,416 = 467,992
244 × 1,918 = 467,992
274 × 1,708 = 467,992
427 × 1,096 = 467,992
488 × 959 = 467,992
548 × 854 = 467,992
16 unique multiplications The final answer:
(scroll down)