To find all the divisors of the number 14,273,750:
- 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 14,273,750:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
14,273,750 = 2 × 54 × 19 × 601
14,273,750 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) × (4 + 1) × (1 + 1) × (1 + 1) = 2 × 5 × 2 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 14,273,750
- 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
composite factor = 2 × 5 =
10
prime factor =
19
composite factor = 5
2 =
25
composite factor = 2 × 19 =
38
composite factor = 2 × 5
2 =
50
composite factor = 5 × 19 =
95
composite factor = 5
3 =
125
composite factor = 2 × 5 × 19 =
190
composite factor = 2 × 5
3 =
250
composite factor = 5
2 × 19 =
475
prime factor =
601
composite factor = 5
4 =
625
composite factor = 2 × 5
2 × 19 =
950
composite factor = 2 × 601 =
1,202
composite factor = 2 × 5
4 =
1,250
composite factor = 5
3 × 19 =
2,375
composite factor = 5 × 601 =
3,005
This list continues below...
... This list continues from above
composite factor = 2 × 5
3 × 19 =
4,750
composite factor = 2 × 5 × 601 =
6,010
composite factor = 19 × 601 =
11,419
composite factor = 5
4 × 19 =
11,875
composite factor = 5
2 × 601 =
15,025
composite factor = 2 × 19 × 601 =
22,838
composite factor = 2 × 5
4 × 19 =
23,750
composite factor = 2 × 5
2 × 601 =
30,050
composite factor = 5 × 19 × 601 =
57,095
composite factor = 5
3 × 601 =
75,125
composite factor = 2 × 5 × 19 × 601 =
114,190
composite factor = 2 × 5
3 × 601 =
150,250
composite factor = 5
2 × 19 × 601 =
285,475
composite factor = 5
4 × 601 =
375,625
composite factor = 2 × 5
2 × 19 × 601 =
570,950
composite factor = 2 × 5
4 × 601 =
751,250
composite factor = 5
3 × 19 × 601 =
1,427,375
composite factor = 2 × 5
3 × 19 × 601 =
2,854,750
composite factor = 5
4 × 19 × 601 =
7,136,875
composite factor = 2 × 5
4 × 19 × 601 =
14,273,750
40 factors (divisors)
What times what is 14,273,750?
What number multiplied by what number equals 14,273,750?
All the combinations of any two natural numbers whose product equals 14,273,750.
1 × 14,273,750 = 14,273,750
2 × 7,136,875 = 14,273,750
5 × 2,854,750 = 14,273,750
10 × 1,427,375 = 14,273,750
19 × 751,250 = 14,273,750
25 × 570,950 = 14,273,750
38 × 375,625 = 14,273,750
50 × 285,475 = 14,273,750
95 × 150,250 = 14,273,750
125 × 114,190 = 14,273,750
190 × 75,125 = 14,273,750
250 × 57,095 = 14,273,750
475 × 30,050 = 14,273,750
601 × 23,750 = 14,273,750
625 × 22,838 = 14,273,750
950 × 15,025 = 14,273,750
1,202 × 11,875 = 14,273,750
1,250 × 11,419 = 14,273,750
2,375 × 6,010 = 14,273,750
3,005 × 4,750 = 14,273,750
20 unique multiplications The final answer:
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