To find all the divisors of the number 4,731,600:
- 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 4,731,600:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
4,731,600 = 24 × 3 × 52 × 3,943
4,731,600 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) × (2 + 1) × (1 + 1) = 5 × 2 × 3 × 2 = 60
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 4,731,600
- 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
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
3 × 3 =
24
composite factor = 5
2 =
25
composite factor = 2 × 3 × 5 =
30
composite factor = 2
3 × 5 =
40
composite factor = 2
4 × 3 =
48
composite factor = 2 × 5
2 =
50
composite factor = 2
2 × 3 × 5 =
60
composite factor = 3 × 5
2 =
75
composite factor = 2
4 × 5 =
80
composite factor = 2
2 × 5
2 =
100
composite factor = 2
3 × 3 × 5 =
120
composite factor = 2 × 3 × 5
2 =
150
composite factor = 2
3 × 5
2 =
200
composite factor = 2
4 × 3 × 5 =
240
composite factor = 2
2 × 3 × 5
2 =
300
composite factor = 2
4 × 5
2 =
400
composite factor = 2
3 × 3 × 5
2 =
600
composite factor = 2
4 × 3 × 5
2 =
1,200
This list continues below...
... This list continues from above
prime factor =
3,943
composite factor = 2 × 3,943 =
7,886
composite factor = 3 × 3,943 =
11,829
composite factor = 2
2 × 3,943 =
15,772
composite factor = 5 × 3,943 =
19,715
composite factor = 2 × 3 × 3,943 =
23,658
composite factor = 2
3 × 3,943 =
31,544
composite factor = 2 × 5 × 3,943 =
39,430
composite factor = 2
2 × 3 × 3,943 =
47,316
composite factor = 3 × 5 × 3,943 =
59,145
composite factor = 2
4 × 3,943 =
63,088
composite factor = 2
2 × 5 × 3,943 =
78,860
composite factor = 2
3 × 3 × 3,943 =
94,632
composite factor = 5
2 × 3,943 =
98,575
composite factor = 2 × 3 × 5 × 3,943 =
118,290
composite factor = 2
3 × 5 × 3,943 =
157,720
composite factor = 2
4 × 3 × 3,943 =
189,264
composite factor = 2 × 5
2 × 3,943 =
197,150
composite factor = 2
2 × 3 × 5 × 3,943 =
236,580
composite factor = 3 × 5
2 × 3,943 =
295,725
composite factor = 2
4 × 5 × 3,943 =
315,440
composite factor = 2
2 × 5
2 × 3,943 =
394,300
composite factor = 2
3 × 3 × 5 × 3,943 =
473,160
composite factor = 2 × 3 × 5
2 × 3,943 =
591,450
composite factor = 2
3 × 5
2 × 3,943 =
788,600
composite factor = 2
4 × 3 × 5 × 3,943 =
946,320
composite factor = 2
2 × 3 × 5
2 × 3,943 =
1,182,900
composite factor = 2
4 × 5
2 × 3,943 =
1,577,200
composite factor = 2
3 × 3 × 5
2 × 3,943 =
2,365,800
composite factor = 2
4 × 3 × 5
2 × 3,943 =
4,731,600
60 factors (divisors)
What times what is 4,731,600?
What number multiplied by what number equals 4,731,600?
All the combinations of any two natural numbers whose product equals 4,731,600.
1 × 4,731,600 = 4,731,600
2 × 2,365,800 = 4,731,600
3 × 1,577,200 = 4,731,600
4 × 1,182,900 = 4,731,600
5 × 946,320 = 4,731,600
6 × 788,600 = 4,731,600
8 × 591,450 = 4,731,600
10 × 473,160 = 4,731,600
12 × 394,300 = 4,731,600
15 × 315,440 = 4,731,600
16 × 295,725 = 4,731,600
20 × 236,580 = 4,731,600
24 × 197,150 = 4,731,600
25 × 189,264 = 4,731,600
30 × 157,720 = 4,731,600
40 × 118,290 = 4,731,600
48 × 98,575 = 4,731,600
50 × 94,632 = 4,731,600
60 × 78,860 = 4,731,600
75 × 63,088 = 4,731,600
80 × 59,145 = 4,731,600
100 × 47,316 = 4,731,600
120 × 39,430 = 4,731,600
150 × 31,544 = 4,731,600
200 × 23,658 = 4,731,600
240 × 19,715 = 4,731,600
300 × 15,772 = 4,731,600
400 × 11,829 = 4,731,600
600 × 7,886 = 4,731,600
1,200 × 3,943 = 4,731,600
30 unique multiplications The final answer:
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