To find all the divisors of the number 3,473,620:
- 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 3,473,620:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,473,620 = 22 × 5 × 29 × 53 × 113
3,473,620 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 3,473,620
- 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 × 5 =
10
composite factor = 2
2 × 5 =
20
prime factor =
29
prime factor =
53
composite factor = 2 × 29 =
58
composite factor = 2 × 53 =
106
prime factor =
113
composite factor = 2
2 × 29 =
116
composite factor = 5 × 29 =
145
composite factor = 2
2 × 53 =
212
composite factor = 2 × 113 =
226
composite factor = 5 × 53 =
265
composite factor = 2 × 5 × 29 =
290
composite factor = 2
2 × 113 =
452
composite factor = 2 × 5 × 53 =
530
composite factor = 5 × 113 =
565
composite factor = 2
2 × 5 × 29 =
580
composite factor = 2
2 × 5 × 53 =
1,060
composite factor = 2 × 5 × 113 =
1,130
composite factor = 29 × 53 =
1,537
This list continues below...
... This list continues from above
composite factor = 2
2 × 5 × 113 =
2,260
composite factor = 2 × 29 × 53 =
3,074
composite factor = 29 × 113 =
3,277
composite factor = 53 × 113 =
5,989
composite factor = 2
2 × 29 × 53 =
6,148
composite factor = 2 × 29 × 113 =
6,554
composite factor = 5 × 29 × 53 =
7,685
composite factor = 2 × 53 × 113 =
11,978
composite factor = 2
2 × 29 × 113 =
13,108
composite factor = 2 × 5 × 29 × 53 =
15,370
composite factor = 5 × 29 × 113 =
16,385
composite factor = 2
2 × 53 × 113 =
23,956
composite factor = 5 × 53 × 113 =
29,945
composite factor = 2
2 × 5 × 29 × 53 =
30,740
composite factor = 2 × 5 × 29 × 113 =
32,770
composite factor = 2 × 5 × 53 × 113 =
59,890
composite factor = 2
2 × 5 × 29 × 113 =
65,540
composite factor = 2
2 × 5 × 53 × 113 =
119,780
composite factor = 29 × 53 × 113 =
173,681
composite factor = 2 × 29 × 53 × 113 =
347,362
composite factor = 2
2 × 29 × 53 × 113 =
694,724
composite factor = 5 × 29 × 53 × 113 =
868,405
composite factor = 2 × 5 × 29 × 53 × 113 =
1,736,810
composite factor = 2
2 × 5 × 29 × 53 × 113 =
3,473,620
48 factors (divisors)
What times what is 3,473,620?
What number multiplied by what number equals 3,473,620?
All the combinations of any two natural numbers whose product equals 3,473,620.
1 × 3,473,620 = 3,473,620
2 × 1,736,810 = 3,473,620
4 × 868,405 = 3,473,620
5 × 694,724 = 3,473,620
10 × 347,362 = 3,473,620
20 × 173,681 = 3,473,620
29 × 119,780 = 3,473,620
53 × 65,540 = 3,473,620
58 × 59,890 = 3,473,620
106 × 32,770 = 3,473,620
113 × 30,740 = 3,473,620
116 × 29,945 = 3,473,620
145 × 23,956 = 3,473,620
212 × 16,385 = 3,473,620
226 × 15,370 = 3,473,620
265 × 13,108 = 3,473,620
290 × 11,978 = 3,473,620
452 × 7,685 = 3,473,620
530 × 6,554 = 3,473,620
565 × 6,148 = 3,473,620
580 × 5,989 = 3,473,620
1,060 × 3,277 = 3,473,620
1,130 × 3,074 = 3,473,620
1,537 × 2,260 = 3,473,620
24 unique multiplications The final answer:
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