To find all the divisors of the number 800,000,050:
- 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 800,000,050:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
800,000,050 = 2 × 52 × 109 × 229 × 641
800,000,050 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) × (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 800,000,050
- 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 =
5
composite factor = 2 × 5 =
10
composite factor = 5
2 =
25
composite factor = 2 × 5
2 =
50
prime factor =
109
composite factor = 2 × 109 =
218
prime factor =
229
composite factor = 2 × 229 =
458
composite factor = 5 × 109 =
545
prime factor =
641
composite factor = 2 × 5 × 109 =
1,090
composite factor = 5 × 229 =
1,145
composite factor = 2 × 641 =
1,282
composite factor = 2 × 5 × 229 =
2,290
composite factor = 5
2 × 109 =
2,725
composite factor = 5 × 641 =
3,205
composite factor = 2 × 5
2 × 109 =
5,450
composite factor = 5
2 × 229 =
5,725
composite factor = 2 × 5 × 641 =
6,410
composite factor = 2 × 5
2 × 229 =
11,450
composite factor = 5
2 × 641 =
16,025
composite factor = 109 × 229 =
24,961
This list continues below...
... This list continues from above
composite factor = 2 × 5
2 × 641 =
32,050
composite factor = 2 × 109 × 229 =
49,922
composite factor = 109 × 641 =
69,869
composite factor = 5 × 109 × 229 =
124,805
composite factor = 2 × 109 × 641 =
139,738
composite factor = 229 × 641 =
146,789
composite factor = 2 × 5 × 109 × 229 =
249,610
composite factor = 2 × 229 × 641 =
293,578
composite factor = 5 × 109 × 641 =
349,345
composite factor = 5
2 × 109 × 229 =
624,025
composite factor = 2 × 5 × 109 × 641 =
698,690
composite factor = 5 × 229 × 641 =
733,945
composite factor = 2 × 5
2 × 109 × 229 =
1,248,050
composite factor = 2 × 5 × 229 × 641 =
1,467,890
composite factor = 5
2 × 109 × 641 =
1,746,725
composite factor = 2 × 5
2 × 109 × 641 =
3,493,450
composite factor = 5
2 × 229 × 641 =
3,669,725
composite factor = 2 × 5
2 × 229 × 641 =
7,339,450
composite factor = 109 × 229 × 641 =
16,000,001
composite factor = 2 × 109 × 229 × 641 =
32,000,002
composite factor = 5 × 109 × 229 × 641 =
80,000,005
composite factor = 2 × 5 × 109 × 229 × 641 =
160,000,010
composite factor = 5
2 × 109 × 229 × 641 =
400,000,025
composite factor = 2 × 5
2 × 109 × 229 × 641 =
800,000,050
48 factors (divisors)
What times what is 800,000,050?
What number multiplied by what number equals 800,000,050?
All the combinations of any two natural numbers whose product equals 800,000,050.
1 × 800,000,050 = 800,000,050
2 × 400,000,025 = 800,000,050
5 × 160,000,010 = 800,000,050
10 × 80,000,005 = 800,000,050
25 × 32,000,002 = 800,000,050
50 × 16,000,001 = 800,000,050
109 × 7,339,450 = 800,000,050
218 × 3,669,725 = 800,000,050
229 × 3,493,450 = 800,000,050
458 × 1,746,725 = 800,000,050
545 × 1,467,890 = 800,000,050
641 × 1,248,050 = 800,000,050
1,090 × 733,945 = 800,000,050
1,145 × 698,690 = 800,000,050
1,282 × 624,025 = 800,000,050
2,290 × 349,345 = 800,000,050
2,725 × 293,578 = 800,000,050
3,205 × 249,610 = 800,000,050
5,450 × 146,789 = 800,000,050
5,725 × 139,738 = 800,000,050
6,410 × 124,805 = 800,000,050
11,450 × 69,869 = 800,000,050
16,025 × 49,922 = 800,000,050
24,961 × 32,050 = 800,000,050
24 unique multiplications The final answer:
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