To find all the divisors of the number 4,992,008:
- 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 4,992,008:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
4,992,008 = 23 × 7 × 97 × 919
4,992,008 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 4,992,008
- 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 =
97
composite factor = 2 × 97 =
194
composite factor = 2
2 × 97 =
388
composite factor = 7 × 97 =
679
composite factor = 2
3 × 97 =
776
prime factor =
919
composite factor = 2 × 7 × 97 =
1,358
composite factor = 2 × 919 =
1,838
This list continues below...
... This list continues from above
composite factor = 2
2 × 7 × 97 =
2,716
composite factor = 2
2 × 919 =
3,676
composite factor = 2
3 × 7 × 97 =
5,432
composite factor = 7 × 919 =
6,433
composite factor = 2
3 × 919 =
7,352
composite factor = 2 × 7 × 919 =
12,866
composite factor = 2
2 × 7 × 919 =
25,732
composite factor = 2
3 × 7 × 919 =
51,464
composite factor = 97 × 919 =
89,143
composite factor = 2 × 97 × 919 =
178,286
composite factor = 2
2 × 97 × 919 =
356,572
composite factor = 7 × 97 × 919 =
624,001
composite factor = 2
3 × 97 × 919 =
713,144
composite factor = 2 × 7 × 97 × 919 =
1,248,002
composite factor = 2
2 × 7 × 97 × 919 =
2,496,004
composite factor = 2
3 × 7 × 97 × 919 =
4,992,008
32 factors (divisors)
What times what is 4,992,008?
What number multiplied by what number equals 4,992,008?
All the combinations of any two natural numbers whose product equals 4,992,008.
1 × 4,992,008 = 4,992,008
2 × 2,496,004 = 4,992,008
4 × 1,248,002 = 4,992,008
7 × 713,144 = 4,992,008
8 × 624,001 = 4,992,008
14 × 356,572 = 4,992,008
28 × 178,286 = 4,992,008
56 × 89,143 = 4,992,008
97 × 51,464 = 4,992,008
194 × 25,732 = 4,992,008
388 × 12,866 = 4,992,008
679 × 7,352 = 4,992,008
776 × 6,433 = 4,992,008
919 × 5,432 = 4,992,008
1,358 × 3,676 = 4,992,008
1,838 × 2,716 = 4,992,008
16 unique multiplications The final answer:
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