To find all the divisors of the number 648,024:
- 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 648,024:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
648,024 = 23 × 3 × 13 × 31 × 67
648,024 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) × (1 + 1) = 4 × 2 × 2 × 2 × 2 = 64
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 648,024
- 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
prime factor =
13
composite factor = 2
3 × 3 =
24
composite factor = 2 × 13 =
26
prime factor =
31
composite factor = 3 × 13 =
39
composite factor = 2
2 × 13 =
52
composite factor = 2 × 31 =
62
prime factor =
67
composite factor = 2 × 3 × 13 =
78
composite factor = 3 × 31 =
93
composite factor = 2
3 × 13 =
104
composite factor = 2
2 × 31 =
124
composite factor = 2 × 67 =
134
composite factor = 2
2 × 3 × 13 =
156
composite factor = 2 × 3 × 31 =
186
composite factor = 3 × 67 =
201
composite factor = 2
3 × 31 =
248
composite factor = 2
2 × 67 =
268
composite factor = 2
3 × 3 × 13 =
312
composite factor = 2
2 × 3 × 31 =
372
composite factor = 2 × 3 × 67 =
402
composite factor = 13 × 31 =
403
composite factor = 2
3 × 67 =
536
composite factor = 2
3 × 3 × 31 =
744
composite factor = 2
2 × 3 × 67 =
804
This list continues below...
... This list continues from above
composite factor = 2 × 13 × 31 =
806
composite factor = 13 × 67 =
871
composite factor = 3 × 13 × 31 =
1,209
composite factor = 2
3 × 3 × 67 =
1,608
composite factor = 2
2 × 13 × 31 =
1,612
composite factor = 2 × 13 × 67 =
1,742
composite factor = 31 × 67 =
2,077
composite factor = 2 × 3 × 13 × 31 =
2,418
composite factor = 3 × 13 × 67 =
2,613
composite factor = 2
3 × 13 × 31 =
3,224
composite factor = 2
2 × 13 × 67 =
3,484
composite factor = 2 × 31 × 67 =
4,154
composite factor = 2
2 × 3 × 13 × 31 =
4,836
composite factor = 2 × 3 × 13 × 67 =
5,226
composite factor = 3 × 31 × 67 =
6,231
composite factor = 2
3 × 13 × 67 =
6,968
composite factor = 2
2 × 31 × 67 =
8,308
composite factor = 2
3 × 3 × 13 × 31 =
9,672
composite factor = 2
2 × 3 × 13 × 67 =
10,452
composite factor = 2 × 3 × 31 × 67 =
12,462
composite factor = 2
3 × 31 × 67 =
16,616
composite factor = 2
3 × 3 × 13 × 67 =
20,904
composite factor = 2
2 × 3 × 31 × 67 =
24,924
composite factor = 13 × 31 × 67 =
27,001
composite factor = 2
3 × 3 × 31 × 67 =
49,848
composite factor = 2 × 13 × 31 × 67 =
54,002
composite factor = 3 × 13 × 31 × 67 =
81,003
composite factor = 2
2 × 13 × 31 × 67 =
108,004
composite factor = 2 × 3 × 13 × 31 × 67 =
162,006
composite factor = 2
3 × 13 × 31 × 67 =
216,008
composite factor = 2
2 × 3 × 13 × 31 × 67 =
324,012
composite factor = 2
3 × 3 × 13 × 31 × 67 =
648,024
64 factors (divisors)
What times what is 648,024?
What number multiplied by what number equals 648,024?
All the combinations of any two natural numbers whose product equals 648,024.
1 × 648,024 = 648,024
2 × 324,012 = 648,024
3 × 216,008 = 648,024
4 × 162,006 = 648,024
6 × 108,004 = 648,024
8 × 81,003 = 648,024
12 × 54,002 = 648,024
13 × 49,848 = 648,024
24 × 27,001 = 648,024
26 × 24,924 = 648,024
31 × 20,904 = 648,024
39 × 16,616 = 648,024
52 × 12,462 = 648,024
62 × 10,452 = 648,024
67 × 9,672 = 648,024
78 × 8,308 = 648,024
93 × 6,968 = 648,024
104 × 6,231 = 648,024
124 × 5,226 = 648,024
134 × 4,836 = 648,024
156 × 4,154 = 648,024
186 × 3,484 = 648,024
201 × 3,224 = 648,024
248 × 2,613 = 648,024
268 × 2,418 = 648,024
312 × 2,077 = 648,024
372 × 1,742 = 648,024
402 × 1,612 = 648,024
403 × 1,608 = 648,024
536 × 1,209 = 648,024
744 × 871 = 648,024
804 × 806 = 648,024
32 unique multiplications The final answer:
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