To find all the divisors of the number 250,000,050:
- 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 250,000,050:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
250,000,050 = 2 × 3 × 52 × 47 × 35,461
250,000,050 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) × (1 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 3 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 250,000,050
- 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
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 2 × 5 =
10
composite factor = 3 × 5 =
15
composite factor = 5
2 =
25
composite factor = 2 × 3 × 5 =
30
prime factor =
47
composite factor = 2 × 5
2 =
50
composite factor = 3 × 5
2 =
75
composite factor = 2 × 47 =
94
composite factor = 3 × 47 =
141
composite factor = 2 × 3 × 5
2 =
150
composite factor = 5 × 47 =
235
composite factor = 2 × 3 × 47 =
282
composite factor = 2 × 5 × 47 =
470
composite factor = 3 × 5 × 47 =
705
composite factor = 5
2 × 47 =
1,175
composite factor = 2 × 3 × 5 × 47 =
1,410
composite factor = 2 × 5
2 × 47 =
2,350
composite factor = 3 × 5
2 × 47 =
3,525
composite factor = 2 × 3 × 5
2 × 47 =
7,050
This list continues below...
... This list continues from above
prime factor =
35,461
composite factor = 2 × 35,461 =
70,922
composite factor = 3 × 35,461 =
106,383
composite factor = 5 × 35,461 =
177,305
composite factor = 2 × 3 × 35,461 =
212,766
composite factor = 2 × 5 × 35,461 =
354,610
composite factor = 3 × 5 × 35,461 =
531,915
composite factor = 5
2 × 35,461 =
886,525
composite factor = 2 × 3 × 5 × 35,461 =
1,063,830
composite factor = 47 × 35,461 =
1,666,667
composite factor = 2 × 5
2 × 35,461 =
1,773,050
composite factor = 3 × 5
2 × 35,461 =
2,659,575
composite factor = 2 × 47 × 35,461 =
3,333,334
composite factor = 3 × 47 × 35,461 =
5,000,001
composite factor = 2 × 3 × 5
2 × 35,461 =
5,319,150
composite factor = 5 × 47 × 35,461 =
8,333,335
composite factor = 2 × 3 × 47 × 35,461 =
10,000,002
composite factor = 2 × 5 × 47 × 35,461 =
16,666,670
composite factor = 3 × 5 × 47 × 35,461 =
25,000,005
composite factor = 5
2 × 47 × 35,461 =
41,666,675
composite factor = 2 × 3 × 5 × 47 × 35,461 =
50,000,010
composite factor = 2 × 5
2 × 47 × 35,461 =
83,333,350
composite factor = 3 × 5
2 × 47 × 35,461 =
125,000,025
composite factor = 2 × 3 × 5
2 × 47 × 35,461 =
250,000,050
48 factors (divisors)
What times what is 250,000,050?
What number multiplied by what number equals 250,000,050?
All the combinations of any two natural numbers whose product equals 250,000,050.
1 × 250,000,050 = 250,000,050
2 × 125,000,025 = 250,000,050
3 × 83,333,350 = 250,000,050
5 × 50,000,010 = 250,000,050
6 × 41,666,675 = 250,000,050
10 × 25,000,005 = 250,000,050
15 × 16,666,670 = 250,000,050
25 × 10,000,002 = 250,000,050
30 × 8,333,335 = 250,000,050
47 × 5,319,150 = 250,000,050
50 × 5,000,001 = 250,000,050
75 × 3,333,334 = 250,000,050
94 × 2,659,575 = 250,000,050
141 × 1,773,050 = 250,000,050
150 × 1,666,667 = 250,000,050
235 × 1,063,830 = 250,000,050
282 × 886,525 = 250,000,050
470 × 531,915 = 250,000,050
705 × 354,610 = 250,000,050
1,175 × 212,766 = 250,000,050
1,410 × 177,305 = 250,000,050
2,350 × 106,383 = 250,000,050
3,525 × 70,922 = 250,000,050
7,050 × 35,461 = 250,000,050
24 unique multiplications The final answer:
(scroll down)