To find all the divisors of the number 314,650:
- 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 314,650:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
314,650 = 2 × 52 × 7 × 29 × 31
314,650 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 = (1 + 1) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 3 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 314,650
- 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 =
5
prime factor =
7
composite factor = 2 × 5 =
10
composite factor = 2 × 7 =
14
composite factor = 5
2 =
25
prime factor =
29
prime factor =
31
composite factor = 5 × 7 =
35
composite factor = 2 × 5
2 =
50
composite factor = 2 × 29 =
58
composite factor = 2 × 31 =
62
composite factor = 2 × 5 × 7 =
70
composite factor = 5 × 29 =
145
composite factor = 5 × 31 =
155
composite factor = 5
2 × 7 =
175
composite factor = 7 × 29 =
203
composite factor = 7 × 31 =
217
composite factor = 2 × 5 × 29 =
290
composite factor = 2 × 5 × 31 =
310
composite factor = 2 × 5
2 × 7 =
350
composite factor = 2 × 7 × 29 =
406
composite factor = 2 × 7 × 31 =
434
This list continues below...
... This list continues from above
composite factor = 5
2 × 29 =
725
composite factor = 5
2 × 31 =
775
composite factor = 29 × 31 =
899
composite factor = 5 × 7 × 29 =
1,015
composite factor = 5 × 7 × 31 =
1,085
composite factor = 2 × 5
2 × 29 =
1,450
composite factor = 2 × 5
2 × 31 =
1,550
composite factor = 2 × 29 × 31 =
1,798
composite factor = 2 × 5 × 7 × 29 =
2,030
composite factor = 2 × 5 × 7 × 31 =
2,170
composite factor = 5 × 29 × 31 =
4,495
composite factor = 5
2 × 7 × 29 =
5,075
composite factor = 5
2 × 7 × 31 =
5,425
composite factor = 7 × 29 × 31 =
6,293
composite factor = 2 × 5 × 29 × 31 =
8,990
composite factor = 2 × 5
2 × 7 × 29 =
10,150
composite factor = 2 × 5
2 × 7 × 31 =
10,850
composite factor = 2 × 7 × 29 × 31 =
12,586
composite factor = 5
2 × 29 × 31 =
22,475
composite factor = 5 × 7 × 29 × 31 =
31,465
composite factor = 2 × 5
2 × 29 × 31 =
44,950
composite factor = 2 × 5 × 7 × 29 × 31 =
62,930
composite factor = 5
2 × 7 × 29 × 31 =
157,325
composite factor = 2 × 5
2 × 7 × 29 × 31 =
314,650
48 factors (divisors)
What times what is 314,650?
What number multiplied by what number equals 314,650?
All the combinations of any two natural numbers whose product equals 314,650.
1 × 314,650 = 314,650
2 × 157,325 = 314,650
5 × 62,930 = 314,650
7 × 44,950 = 314,650
10 × 31,465 = 314,650
14 × 22,475 = 314,650
25 × 12,586 = 314,650
29 × 10,850 = 314,650
31 × 10,150 = 314,650
35 × 8,990 = 314,650
50 × 6,293 = 314,650
58 × 5,425 = 314,650
62 × 5,075 = 314,650
70 × 4,495 = 314,650
145 × 2,170 = 314,650
155 × 2,030 = 314,650
175 × 1,798 = 314,650
203 × 1,550 = 314,650
217 × 1,450 = 314,650
290 × 1,085 = 314,650
310 × 1,015 = 314,650
350 × 899 = 314,650
406 × 775 = 314,650
434 × 725 = 314,650
24 unique multiplications The final answer:
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