To find all the divisors of the number 3,290,580:
- 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 3,290,580:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
3,290,580 = 22 × 32 × 5 × 101 × 181
3,290,580 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 3,290,580
- 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
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 × 3 × 5 =
30
composite factor = 2
2 × 3
2 =
36
composite factor = 3
2 × 5 =
45
composite factor = 2
2 × 3 × 5 =
60
composite factor = 2 × 3
2 × 5 =
90
prime factor =
101
composite factor = 2
2 × 3
2 × 5 =
180
prime factor =
181
composite factor = 2 × 101 =
202
composite factor = 3 × 101 =
303
composite factor = 2 × 181 =
362
composite factor = 2
2 × 101 =
404
composite factor = 5 × 101 =
505
composite factor = 3 × 181 =
543
composite factor = 2 × 3 × 101 =
606
composite factor = 2
2 × 181 =
724
composite factor = 5 × 181 =
905
composite factor = 3
2 × 101 =
909
composite factor = 2 × 5 × 101 =
1,010
composite factor = 2 × 3 × 181 =
1,086
composite factor = 2
2 × 3 × 101 =
1,212
composite factor = 3 × 5 × 101 =
1,515
composite factor = 3
2 × 181 =
1,629
composite factor = 2 × 5 × 181 =
1,810
This list continues below...
... This list continues from above
composite factor = 2 × 3
2 × 101 =
1,818
composite factor = 2
2 × 5 × 101 =
2,020
composite factor = 2
2 × 3 × 181 =
2,172
composite factor = 3 × 5 × 181 =
2,715
composite factor = 2 × 3 × 5 × 101 =
3,030
composite factor = 2 × 3
2 × 181 =
3,258
composite factor = 2
2 × 5 × 181 =
3,620
composite factor = 2
2 × 3
2 × 101 =
3,636
composite factor = 3
2 × 5 × 101 =
4,545
composite factor = 2 × 3 × 5 × 181 =
5,430
composite factor = 2
2 × 3 × 5 × 101 =
6,060
composite factor = 2
2 × 3
2 × 181 =
6,516
composite factor = 3
2 × 5 × 181 =
8,145
composite factor = 2 × 3
2 × 5 × 101 =
9,090
composite factor = 2
2 × 3 × 5 × 181 =
10,860
composite factor = 2 × 3
2 × 5 × 181 =
16,290
composite factor = 2
2 × 3
2 × 5 × 101 =
18,180
composite factor = 101 × 181 =
18,281
composite factor = 2
2 × 3
2 × 5 × 181 =
32,580
composite factor = 2 × 101 × 181 =
36,562
composite factor = 3 × 101 × 181 =
54,843
composite factor = 2
2 × 101 × 181 =
73,124
composite factor = 5 × 101 × 181 =
91,405
composite factor = 2 × 3 × 101 × 181 =
109,686
composite factor = 3
2 × 101 × 181 =
164,529
composite factor = 2 × 5 × 101 × 181 =
182,810
composite factor = 2
2 × 3 × 101 × 181 =
219,372
composite factor = 3 × 5 × 101 × 181 =
274,215
composite factor = 2 × 3
2 × 101 × 181 =
329,058
composite factor = 2
2 × 5 × 101 × 181 =
365,620
composite factor = 2 × 3 × 5 × 101 × 181 =
548,430
composite factor = 2
2 × 3
2 × 101 × 181 =
658,116
composite factor = 3
2 × 5 × 101 × 181 =
822,645
composite factor = 2
2 × 3 × 5 × 101 × 181 =
1,096,860
composite factor = 2 × 3
2 × 5 × 101 × 181 =
1,645,290
composite factor = 2
2 × 3
2 × 5 × 101 × 181 =
3,290,580
72 factors (divisors)
What times what is 3,290,580?
What number multiplied by what number equals 3,290,580?
All the combinations of any two natural numbers whose product equals 3,290,580.
1 × 3,290,580 = 3,290,580
2 × 1,645,290 = 3,290,580
3 × 1,096,860 = 3,290,580
4 × 822,645 = 3,290,580
5 × 658,116 = 3,290,580
6 × 548,430 = 3,290,580
9 × 365,620 = 3,290,580
10 × 329,058 = 3,290,580
12 × 274,215 = 3,290,580
15 × 219,372 = 3,290,580
18 × 182,810 = 3,290,580
20 × 164,529 = 3,290,580
30 × 109,686 = 3,290,580
36 × 91,405 = 3,290,580
45 × 73,124 = 3,290,580
60 × 54,843 = 3,290,580
90 × 36,562 = 3,290,580
101 × 32,580 = 3,290,580
180 × 18,281 = 3,290,580
181 × 18,180 = 3,290,580
202 × 16,290 = 3,290,580
303 × 10,860 = 3,290,580
362 × 9,090 = 3,290,580
404 × 8,145 = 3,290,580
505 × 6,516 = 3,290,580
543 × 6,060 = 3,290,580
606 × 5,430 = 3,290,580
724 × 4,545 = 3,290,580
905 × 3,636 = 3,290,580
909 × 3,620 = 3,290,580
1,010 × 3,258 = 3,290,580
1,086 × 3,030 = 3,290,580
1,212 × 2,715 = 3,290,580
1,515 × 2,172 = 3,290,580
1,629 × 2,020 = 3,290,580
1,810 × 1,818 = 3,290,580
36 unique multiplications The final answer:
(scroll down)