To find all the divisors of the number 112,988,300:
- 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 112,988,300:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
112,988,300 = 22 × 52 × 277 × 4,079
112,988,300 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 = (2 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 3 × 3 × 2 × 2 = 36
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 112,988,300
- 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
composite factor = 2
2 =
4
prime factor =
5
composite factor = 2 × 5 =
10
composite factor = 2
2 × 5 =
20
composite factor = 5
2 =
25
composite factor = 2 × 5
2 =
50
composite factor = 2
2 × 5
2 =
100
prime factor =
277
composite factor = 2 × 277 =
554
composite factor = 2
2 × 277 =
1,108
composite factor = 5 × 277 =
1,385
composite factor = 2 × 5 × 277 =
2,770
prime factor =
4,079
composite factor = 2
2 × 5 × 277 =
5,540
composite factor = 5
2 × 277 =
6,925
composite factor = 2 × 4,079 =
8,158
This list continues below...
... This list continues from above
composite factor = 2 × 5
2 × 277 =
13,850
composite factor = 2
2 × 4,079 =
16,316
composite factor = 5 × 4,079 =
20,395
composite factor = 2
2 × 5
2 × 277 =
27,700
composite factor = 2 × 5 × 4,079 =
40,790
composite factor = 2
2 × 5 × 4,079 =
81,580
composite factor = 5
2 × 4,079 =
101,975
composite factor = 2 × 5
2 × 4,079 =
203,950
composite factor = 2
2 × 5
2 × 4,079 =
407,900
composite factor = 277 × 4,079 =
1,129,883
composite factor = 2 × 277 × 4,079 =
2,259,766
composite factor = 2
2 × 277 × 4,079 =
4,519,532
composite factor = 5 × 277 × 4,079 =
5,649,415
composite factor = 2 × 5 × 277 × 4,079 =
11,298,830
composite factor = 2
2 × 5 × 277 × 4,079 =
22,597,660
composite factor = 5
2 × 277 × 4,079 =
28,247,075
composite factor = 2 × 5
2 × 277 × 4,079 =
56,494,150
composite factor = 2
2 × 5
2 × 277 × 4,079 =
112,988,300
36 factors (divisors)
What times what is 112,988,300?
What number multiplied by what number equals 112,988,300?
All the combinations of any two natural numbers whose product equals 112,988,300.
1 × 112,988,300 = 112,988,300
2 × 56,494,150 = 112,988,300
4 × 28,247,075 = 112,988,300
5 × 22,597,660 = 112,988,300
10 × 11,298,830 = 112,988,300
20 × 5,649,415 = 112,988,300
25 × 4,519,532 = 112,988,300
50 × 2,259,766 = 112,988,300
100 × 1,129,883 = 112,988,300
277 × 407,900 = 112,988,300
554 × 203,950 = 112,988,300
1,108 × 101,975 = 112,988,300
1,385 × 81,580 = 112,988,300
2,770 × 40,790 = 112,988,300
4,079 × 27,700 = 112,988,300
5,540 × 20,395 = 112,988,300
6,925 × 16,316 = 112,988,300
8,158 × 13,850 = 112,988,300
18 unique multiplications The final answer:
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