To find all the divisors of the number 5,709,540:
- 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 5,709,540:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
5,709,540 = 22 × 3 × 5 × 43 × 2,213
5,709,540 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) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 5,709,540
- 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 = 2 × 5 =
10
composite factor = 2
2 × 3 =
12
composite factor = 3 × 5 =
15
composite factor = 2
2 × 5 =
20
composite factor = 2 × 3 × 5 =
30
prime factor =
43
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2 × 43 =
86
composite factor = 3 × 43 =
129
composite factor = 2
2 × 43 =
172
composite factor = 5 × 43 =
215
composite factor = 2 × 3 × 43 =
258
composite factor = 2 × 5 × 43 =
430
composite factor = 2
2 × 3 × 43 =
516
composite factor = 3 × 5 × 43 =
645
composite factor = 2
2 × 5 × 43 =
860
composite factor = 2 × 3 × 5 × 43 =
1,290
prime factor =
2,213
This list continues below...
... This list continues from above
composite factor = 2
2 × 3 × 5 × 43 =
2,580
composite factor = 2 × 2,213 =
4,426
composite factor = 3 × 2,213 =
6,639
composite factor = 2
2 × 2,213 =
8,852
composite factor = 5 × 2,213 =
11,065
composite factor = 2 × 3 × 2,213 =
13,278
composite factor = 2 × 5 × 2,213 =
22,130
composite factor = 2
2 × 3 × 2,213 =
26,556
composite factor = 3 × 5 × 2,213 =
33,195
composite factor = 2
2 × 5 × 2,213 =
44,260
composite factor = 2 × 3 × 5 × 2,213 =
66,390
composite factor = 43 × 2,213 =
95,159
composite factor = 2
2 × 3 × 5 × 2,213 =
132,780
composite factor = 2 × 43 × 2,213 =
190,318
composite factor = 3 × 43 × 2,213 =
285,477
composite factor = 2
2 × 43 × 2,213 =
380,636
composite factor = 5 × 43 × 2,213 =
475,795
composite factor = 2 × 3 × 43 × 2,213 =
570,954
composite factor = 2 × 5 × 43 × 2,213 =
951,590
composite factor = 2
2 × 3 × 43 × 2,213 =
1,141,908
composite factor = 3 × 5 × 43 × 2,213 =
1,427,385
composite factor = 2
2 × 5 × 43 × 2,213 =
1,903,180
composite factor = 2 × 3 × 5 × 43 × 2,213 =
2,854,770
composite factor = 2
2 × 3 × 5 × 43 × 2,213 =
5,709,540
48 factors (divisors)
What times what is 5,709,540?
What number multiplied by what number equals 5,709,540?
All the combinations of any two natural numbers whose product equals 5,709,540.
1 × 5,709,540 = 5,709,540
2 × 2,854,770 = 5,709,540
3 × 1,903,180 = 5,709,540
4 × 1,427,385 = 5,709,540
5 × 1,141,908 = 5,709,540
6 × 951,590 = 5,709,540
10 × 570,954 = 5,709,540
12 × 475,795 = 5,709,540
15 × 380,636 = 5,709,540
20 × 285,477 = 5,709,540
30 × 190,318 = 5,709,540
43 × 132,780 = 5,709,540
60 × 95,159 = 5,709,540
86 × 66,390 = 5,709,540
129 × 44,260 = 5,709,540
172 × 33,195 = 5,709,540
215 × 26,556 = 5,709,540
258 × 22,130 = 5,709,540
430 × 13,278 = 5,709,540
516 × 11,065 = 5,709,540
645 × 8,852 = 5,709,540
860 × 6,639 = 5,709,540
1,290 × 4,426 = 5,709,540
2,213 × 2,580 = 5,709,540
24 unique multiplications The final answer:
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