To find all the divisors of the number 5,747,940:
- 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 5,747,940:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
5,747,940 = 22 × 32 × 5 × 11 × 2,903
5,747,940 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 = (2 + 1) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 3 × 2 × 2 × 2 = 72
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 5,747,940
- 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
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 2
2 × 3 =
12
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 2
2 × 5 =
20
composite factor = 2 × 11 =
22
composite factor = 2 × 3 × 5 =
30
composite factor = 3 × 11 =
33
composite factor = 2
2 × 3
2 =
36
composite factor = 2
2 × 11 =
44
composite factor = 3
2 × 5 =
45
composite factor = 5 × 11 =
55
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2 × 3 × 11 =
66
composite factor = 2 × 3
2 × 5 =
90
composite factor = 3
2 × 11 =
99
composite factor = 2 × 5 × 11 =
110
composite factor = 2
2 × 3 × 11 =
132
composite factor = 3 × 5 × 11 =
165
composite factor = 2
2 × 3
2 × 5 =
180
composite factor = 2 × 3
2 × 11 =
198
composite factor = 2
2 × 5 × 11 =
220
composite factor = 2 × 3 × 5 × 11 =
330
composite factor = 2
2 × 3
2 × 11 =
396
composite factor = 3
2 × 5 × 11 =
495
composite factor = 2
2 × 3 × 5 × 11 =
660
composite factor = 2 × 3
2 × 5 × 11 =
990
composite factor = 2
2 × 3
2 × 5 × 11 =
1,980
This list continues below...
... This list continues from above
prime factor =
2,903
composite factor = 2 × 2,903 =
5,806
composite factor = 3 × 2,903 =
8,709
composite factor = 2
2 × 2,903 =
11,612
composite factor = 5 × 2,903 =
14,515
composite factor = 2 × 3 × 2,903 =
17,418
composite factor = 3
2 × 2,903 =
26,127
composite factor = 2 × 5 × 2,903 =
29,030
composite factor = 11 × 2,903 =
31,933
composite factor = 2
2 × 3 × 2,903 =
34,836
composite factor = 3 × 5 × 2,903 =
43,545
composite factor = 2 × 3
2 × 2,903 =
52,254
composite factor = 2
2 × 5 × 2,903 =
58,060
composite factor = 2 × 11 × 2,903 =
63,866
composite factor = 2 × 3 × 5 × 2,903 =
87,090
composite factor = 3 × 11 × 2,903 =
95,799
composite factor = 2
2 × 3
2 × 2,903 =
104,508
composite factor = 2
2 × 11 × 2,903 =
127,732
composite factor = 3
2 × 5 × 2,903 =
130,635
composite factor = 5 × 11 × 2,903 =
159,665
composite factor = 2
2 × 3 × 5 × 2,903 =
174,180
composite factor = 2 × 3 × 11 × 2,903 =
191,598
composite factor = 2 × 3
2 × 5 × 2,903 =
261,270
composite factor = 3
2 × 11 × 2,903 =
287,397
composite factor = 2 × 5 × 11 × 2,903 =
319,330
composite factor = 2
2 × 3 × 11 × 2,903 =
383,196
composite factor = 3 × 5 × 11 × 2,903 =
478,995
composite factor = 2
2 × 3
2 × 5 × 2,903 =
522,540
composite factor = 2 × 3
2 × 11 × 2,903 =
574,794
composite factor = 2
2 × 5 × 11 × 2,903 =
638,660
composite factor = 2 × 3 × 5 × 11 × 2,903 =
957,990
composite factor = 2
2 × 3
2 × 11 × 2,903 =
1,149,588
composite factor = 3
2 × 5 × 11 × 2,903 =
1,436,985
composite factor = 2
2 × 3 × 5 × 11 × 2,903 =
1,915,980
composite factor = 2 × 3
2 × 5 × 11 × 2,903 =
2,873,970
composite factor = 2
2 × 3
2 × 5 × 11 × 2,903 =
5,747,940
72 factors (divisors)
What times what is 5,747,940?
What number multiplied by what number equals 5,747,940?
All the combinations of any two natural numbers whose product equals 5,747,940.
1 × 5,747,940 = 5,747,940
2 × 2,873,970 = 5,747,940
3 × 1,915,980 = 5,747,940
4 × 1,436,985 = 5,747,940
5 × 1,149,588 = 5,747,940
6 × 957,990 = 5,747,940
9 × 638,660 = 5,747,940
10 × 574,794 = 5,747,940
11 × 522,540 = 5,747,940
12 × 478,995 = 5,747,940
15 × 383,196 = 5,747,940
18 × 319,330 = 5,747,940
20 × 287,397 = 5,747,940
22 × 261,270 = 5,747,940
30 × 191,598 = 5,747,940
33 × 174,180 = 5,747,940
36 × 159,665 = 5,747,940
44 × 130,635 = 5,747,940
45 × 127,732 = 5,747,940
55 × 104,508 = 5,747,940
60 × 95,799 = 5,747,940
66 × 87,090 = 5,747,940
90 × 63,866 = 5,747,940
99 × 58,060 = 5,747,940
110 × 52,254 = 5,747,940
132 × 43,545 = 5,747,940
165 × 34,836 = 5,747,940
180 × 31,933 = 5,747,940
198 × 29,030 = 5,747,940
220 × 26,127 = 5,747,940
330 × 17,418 = 5,747,940
396 × 14,515 = 5,747,940
495 × 11,612 = 5,747,940
660 × 8,709 = 5,747,940
990 × 5,806 = 5,747,940
1,980 × 2,903 = 5,747,940
36 unique multiplications The final answer:
(scroll down)