To find all the divisors of the number 3,326,560:
- 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 3,326,560:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,326,560 = 25 × 5 × 17 × 1,223
3,326,560 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 = (5 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 6 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 3,326,560
- 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 =
5
composite factor = 2
3 =
8
composite factor = 2 × 5 =
10
composite factor = 2
4 =
16
prime factor =
17
composite factor = 2
2 × 5 =
20
composite factor = 2
5 =
32
composite factor = 2 × 17 =
34
composite factor = 2
3 × 5 =
40
composite factor = 2
2 × 17 =
68
composite factor = 2
4 × 5 =
80
composite factor = 5 × 17 =
85
composite factor = 2
3 × 17 =
136
composite factor = 2
5 × 5 =
160
composite factor = 2 × 5 × 17 =
170
composite factor = 2
4 × 17 =
272
composite factor = 2
2 × 5 × 17 =
340
composite factor = 2
5 × 17 =
544
composite factor = 2
3 × 5 × 17 =
680
prime factor =
1,223
composite factor = 2
4 × 5 × 17 =
1,360
This list continues below...
... This list continues from above
composite factor = 2 × 1,223 =
2,446
composite factor = 2
5 × 5 × 17 =
2,720
composite factor = 2
2 × 1,223 =
4,892
composite factor = 5 × 1,223 =
6,115
composite factor = 2
3 × 1,223 =
9,784
composite factor = 2 × 5 × 1,223 =
12,230
composite factor = 2
4 × 1,223 =
19,568
composite factor = 17 × 1,223 =
20,791
composite factor = 2
2 × 5 × 1,223 =
24,460
composite factor = 2
5 × 1,223 =
39,136
composite factor = 2 × 17 × 1,223 =
41,582
composite factor = 2
3 × 5 × 1,223 =
48,920
composite factor = 2
2 × 17 × 1,223 =
83,164
composite factor = 2
4 × 5 × 1,223 =
97,840
composite factor = 5 × 17 × 1,223 =
103,955
composite factor = 2
3 × 17 × 1,223 =
166,328
composite factor = 2
5 × 5 × 1,223 =
195,680
composite factor = 2 × 5 × 17 × 1,223 =
207,910
composite factor = 2
4 × 17 × 1,223 =
332,656
composite factor = 2
2 × 5 × 17 × 1,223 =
415,820
composite factor = 2
5 × 17 × 1,223 =
665,312
composite factor = 2
3 × 5 × 17 × 1,223 =
831,640
composite factor = 2
4 × 5 × 17 × 1,223 =
1,663,280
composite factor = 2
5 × 5 × 17 × 1,223 =
3,326,560
48 factors (divisors)
What times what is 3,326,560?
What number multiplied by what number equals 3,326,560?
All the combinations of any two natural numbers whose product equals 3,326,560.
1 × 3,326,560 = 3,326,560
2 × 1,663,280 = 3,326,560
4 × 831,640 = 3,326,560
5 × 665,312 = 3,326,560
8 × 415,820 = 3,326,560
10 × 332,656 = 3,326,560
16 × 207,910 = 3,326,560
17 × 195,680 = 3,326,560
20 × 166,328 = 3,326,560
32 × 103,955 = 3,326,560
34 × 97,840 = 3,326,560
40 × 83,164 = 3,326,560
68 × 48,920 = 3,326,560
80 × 41,582 = 3,326,560
85 × 39,136 = 3,326,560
136 × 24,460 = 3,326,560
160 × 20,791 = 3,326,560
170 × 19,568 = 3,326,560
272 × 12,230 = 3,326,560
340 × 9,784 = 3,326,560
544 × 6,115 = 3,326,560
680 × 4,892 = 3,326,560
1,223 × 2,720 = 3,326,560
1,360 × 2,446 = 3,326,560
24 unique multiplications The final answer:
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