To find all the divisors of the number 9,958,350:
- 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 9,958,350:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
9,958,350 = 2 × 3 × 52 × 197 × 337
9,958,350 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 9,958,350
- 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
composite factor = 2 × 5
2 =
50
composite factor = 3 × 5
2 =
75
composite factor = 2 × 3 × 5
2 =
150
prime factor =
197
prime factor =
337
composite factor = 2 × 197 =
394
composite factor = 3 × 197 =
591
composite factor = 2 × 337 =
674
composite factor = 5 × 197 =
985
composite factor = 3 × 337 =
1,011
composite factor = 2 × 3 × 197 =
1,182
composite factor = 5 × 337 =
1,685
composite factor = 2 × 5 × 197 =
1,970
composite factor = 2 × 3 × 337 =
2,022
composite factor = 3 × 5 × 197 =
2,955
This list continues below...
... This list continues from above
composite factor = 2 × 5 × 337 =
3,370
composite factor = 5
2 × 197 =
4,925
composite factor = 3 × 5 × 337 =
5,055
composite factor = 2 × 3 × 5 × 197 =
5,910
composite factor = 5
2 × 337 =
8,425
composite factor = 2 × 5
2 × 197 =
9,850
composite factor = 2 × 3 × 5 × 337 =
10,110
composite factor = 3 × 5
2 × 197 =
14,775
composite factor = 2 × 5
2 × 337 =
16,850
composite factor = 3 × 5
2 × 337 =
25,275
composite factor = 2 × 3 × 5
2 × 197 =
29,550
composite factor = 2 × 3 × 5
2 × 337 =
50,550
composite factor = 197 × 337 =
66,389
composite factor = 2 × 197 × 337 =
132,778
composite factor = 3 × 197 × 337 =
199,167
composite factor = 5 × 197 × 337 =
331,945
composite factor = 2 × 3 × 197 × 337 =
398,334
composite factor = 2 × 5 × 197 × 337 =
663,890
composite factor = 3 × 5 × 197 × 337 =
995,835
composite factor = 5
2 × 197 × 337 =
1,659,725
composite factor = 2 × 3 × 5 × 197 × 337 =
1,991,670
composite factor = 2 × 5
2 × 197 × 337 =
3,319,450
composite factor = 3 × 5
2 × 197 × 337 =
4,979,175
composite factor = 2 × 3 × 5
2 × 197 × 337 =
9,958,350
48 factors (divisors)
What times what is 9,958,350?
What number multiplied by what number equals 9,958,350?
All the combinations of any two natural numbers whose product equals 9,958,350.
1 × 9,958,350 = 9,958,350
2 × 4,979,175 = 9,958,350
3 × 3,319,450 = 9,958,350
5 × 1,991,670 = 9,958,350
6 × 1,659,725 = 9,958,350
10 × 995,835 = 9,958,350
15 × 663,890 = 9,958,350
25 × 398,334 = 9,958,350
30 × 331,945 = 9,958,350
50 × 199,167 = 9,958,350
75 × 132,778 = 9,958,350
150 × 66,389 = 9,958,350
197 × 50,550 = 9,958,350
337 × 29,550 = 9,958,350
394 × 25,275 = 9,958,350
591 × 16,850 = 9,958,350
674 × 14,775 = 9,958,350
985 × 10,110 = 9,958,350
1,011 × 9,850 = 9,958,350
1,182 × 8,425 = 9,958,350
1,685 × 5,910 = 9,958,350
1,970 × 5,055 = 9,958,350
2,022 × 4,925 = 9,958,350
2,955 × 3,370 = 9,958,350
24 unique multiplications The final answer:
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