To find all the divisors of the number 4,707,120:
- 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 4,707,120:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
4,707,120 = 24 × 3 × 5 × 11 × 1,783
4,707,120 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 = (4 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 5 × 2 × 2 × 2 × 2 = 80
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 4,707,120
- 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
3 =
8
composite factor = 2 × 5 =
10
prime factor =
11
composite factor = 2
2 × 3 =
12
composite factor = 3 × 5 =
15
composite factor = 2
4 =
16
composite factor = 2
2 × 5 =
20
composite factor = 2 × 11 =
22
composite factor = 2
3 × 3 =
24
composite factor = 2 × 3 × 5 =
30
composite factor = 3 × 11 =
33
composite factor = 2
3 × 5 =
40
composite factor = 2
2 × 11 =
44
composite factor = 2
4 × 3 =
48
composite factor = 5 × 11 =
55
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2 × 3 × 11 =
66
composite factor = 2
4 × 5 =
80
composite factor = 2
3 × 11 =
88
composite factor = 2 × 5 × 11 =
110
composite factor = 2
3 × 3 × 5 =
120
composite factor = 2
2 × 3 × 11 =
132
composite factor = 3 × 5 × 11 =
165
composite factor = 2
4 × 11 =
176
composite factor = 2
2 × 5 × 11 =
220
composite factor = 2
4 × 3 × 5 =
240
composite factor = 2
3 × 3 × 11 =
264
composite factor = 2 × 3 × 5 × 11 =
330
composite factor = 2
3 × 5 × 11 =
440
composite factor = 2
4 × 3 × 11 =
528
composite factor = 2
2 × 3 × 5 × 11 =
660
composite factor = 2
4 × 5 × 11 =
880
composite factor = 2
3 × 3 × 5 × 11 =
1,320
prime factor =
1,783
This list continues below...
... This list continues from above
composite factor = 2
4 × 3 × 5 × 11 =
2,640
composite factor = 2 × 1,783 =
3,566
composite factor = 3 × 1,783 =
5,349
composite factor = 2
2 × 1,783 =
7,132
composite factor = 5 × 1,783 =
8,915
composite factor = 2 × 3 × 1,783 =
10,698
composite factor = 2
3 × 1,783 =
14,264
composite factor = 2 × 5 × 1,783 =
17,830
composite factor = 11 × 1,783 =
19,613
composite factor = 2
2 × 3 × 1,783 =
21,396
composite factor = 3 × 5 × 1,783 =
26,745
composite factor = 2
4 × 1,783 =
28,528
composite factor = 2
2 × 5 × 1,783 =
35,660
composite factor = 2 × 11 × 1,783 =
39,226
composite factor = 2
3 × 3 × 1,783 =
42,792
composite factor = 2 × 3 × 5 × 1,783 =
53,490
composite factor = 3 × 11 × 1,783 =
58,839
composite factor = 2
3 × 5 × 1,783 =
71,320
composite factor = 2
2 × 11 × 1,783 =
78,452
composite factor = 2
4 × 3 × 1,783 =
85,584
composite factor = 5 × 11 × 1,783 =
98,065
composite factor = 2
2 × 3 × 5 × 1,783 =
106,980
composite factor = 2 × 3 × 11 × 1,783 =
117,678
composite factor = 2
4 × 5 × 1,783 =
142,640
composite factor = 2
3 × 11 × 1,783 =
156,904
composite factor = 2 × 5 × 11 × 1,783 =
196,130
composite factor = 2
3 × 3 × 5 × 1,783 =
213,960
composite factor = 2
2 × 3 × 11 × 1,783 =
235,356
composite factor = 3 × 5 × 11 × 1,783 =
294,195
composite factor = 2
4 × 11 × 1,783 =
313,808
composite factor = 2
2 × 5 × 11 × 1,783 =
392,260
composite factor = 2
4 × 3 × 5 × 1,783 =
427,920
composite factor = 2
3 × 3 × 11 × 1,783 =
470,712
composite factor = 2 × 3 × 5 × 11 × 1,783 =
588,390
composite factor = 2
3 × 5 × 11 × 1,783 =
784,520
composite factor = 2
4 × 3 × 11 × 1,783 =
941,424
composite factor = 2
2 × 3 × 5 × 11 × 1,783 =
1,176,780
composite factor = 2
4 × 5 × 11 × 1,783 =
1,569,040
composite factor = 2
3 × 3 × 5 × 11 × 1,783 =
2,353,560
composite factor = 2
4 × 3 × 5 × 11 × 1,783 =
4,707,120
80 factors (divisors)
What times what is 4,707,120?
What number multiplied by what number equals 4,707,120?
All the combinations of any two natural numbers whose product equals 4,707,120.
1 × 4,707,120 = 4,707,120
2 × 2,353,560 = 4,707,120
3 × 1,569,040 = 4,707,120
4 × 1,176,780 = 4,707,120
5 × 941,424 = 4,707,120
6 × 784,520 = 4,707,120
8 × 588,390 = 4,707,120
10 × 470,712 = 4,707,120
11 × 427,920 = 4,707,120
12 × 392,260 = 4,707,120
15 × 313,808 = 4,707,120
16 × 294,195 = 4,707,120
20 × 235,356 = 4,707,120
22 × 213,960 = 4,707,120
24 × 196,130 = 4,707,120
30 × 156,904 = 4,707,120
33 × 142,640 = 4,707,120
40 × 117,678 = 4,707,120
44 × 106,980 = 4,707,120
48 × 98,065 = 4,707,120
55 × 85,584 = 4,707,120
60 × 78,452 = 4,707,120
66 × 71,320 = 4,707,120
80 × 58,839 = 4,707,120
88 × 53,490 = 4,707,120
110 × 42,792 = 4,707,120
120 × 39,226 = 4,707,120
132 × 35,660 = 4,707,120
165 × 28,528 = 4,707,120
176 × 26,745 = 4,707,120
220 × 21,396 = 4,707,120
240 × 19,613 = 4,707,120
264 × 17,830 = 4,707,120
330 × 14,264 = 4,707,120
440 × 10,698 = 4,707,120
528 × 8,915 = 4,707,120
660 × 7,132 = 4,707,120
880 × 5,349 = 4,707,120
1,320 × 3,566 = 4,707,120
1,783 × 2,640 = 4,707,120
40 unique multiplications The final answer:
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