To find all the divisors of the number 875,000,170:
- 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 875,000,170:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
875,000,170 = 2 × 5 × 11 × 1,153 × 6,899
875,000,170 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) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 875,000,170
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- 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 =
11
composite factor = 2 × 11 =
22
composite factor = 5 × 11 =
55
composite factor = 2 × 5 × 11 =
110
prime factor =
1,153
composite factor = 2 × 1,153 =
2,306
composite factor = 5 × 1,153 =
5,765
prime factor =
6,899
composite factor = 2 × 5 × 1,153 =
11,530
composite factor = 11 × 1,153 =
12,683
composite factor = 2 × 6,899 =
13,798
composite factor = 2 × 11 × 1,153 =
25,366
This list continues below...
... This list continues from above
composite factor = 5 × 6,899 =
34,495
composite factor = 5 × 11 × 1,153 =
63,415
composite factor = 2 × 5 × 6,899 =
68,990
composite factor = 11 × 6,899 =
75,889
composite factor = 2 × 5 × 11 × 1,153 =
126,830
composite factor = 2 × 11 × 6,899 =
151,778
composite factor = 5 × 11 × 6,899 =
379,445
composite factor = 2 × 5 × 11 × 6,899 =
758,890
composite factor = 1,153 × 6,899 =
7,954,547
composite factor = 2 × 1,153 × 6,899 =
15,909,094
composite factor = 5 × 1,153 × 6,899 =
39,772,735
composite factor = 2 × 5 × 1,153 × 6,899 =
79,545,470
composite factor = 11 × 1,153 × 6,899 =
87,500,017
composite factor = 2 × 11 × 1,153 × 6,899 =
175,000,034
composite factor = 5 × 11 × 1,153 × 6,899 =
437,500,085
composite factor = 2 × 5 × 11 × 1,153 × 6,899 =
875,000,170
32 factors (divisors)
What times what is 875,000,170?
What number multiplied by what number equals 875,000,170?
All the combinations of any two natural numbers whose product equals 875,000,170.
1 × 875,000,170 = 875,000,170
2 × 437,500,085 = 875,000,170
5 × 175,000,034 = 875,000,170
10 × 87,500,017 = 875,000,170
11 × 79,545,470 = 875,000,170
22 × 39,772,735 = 875,000,170
55 × 15,909,094 = 875,000,170
110 × 7,954,547 = 875,000,170
1,153 × 758,890 = 875,000,170
2,306 × 379,445 = 875,000,170
5,765 × 151,778 = 875,000,170
6,899 × 126,830 = 875,000,170
11,530 × 75,889 = 875,000,170
12,683 × 68,990 = 875,000,170
13,798 × 63,415 = 875,000,170
25,366 × 34,495 = 875,000,170
16 unique multiplications The final answer:
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