To find all the divisors of the number 984,150:
- 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 984,150:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
984,150 = 2 × 39 × 52
984,150 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) × (9 + 1) × (2 + 1) = 2 × 10 × 3 = 60
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 984,150
- 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 = 3
2 =
9
composite factor = 2 × 5 =
10
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 5
2 =
25
composite factor = 3
3 =
27
composite factor = 2 × 3 × 5 =
30
composite factor = 3
2 × 5 =
45
composite factor = 2 × 5
2 =
50
composite factor = 2 × 3
3 =
54
composite factor = 3 × 5
2 =
75
composite factor = 3
4 =
81
composite factor = 2 × 3
2 × 5 =
90
composite factor = 3
3 × 5 =
135
composite factor = 2 × 3 × 5
2 =
150
composite factor = 2 × 3
4 =
162
composite factor = 3
2 × 5
2 =
225
composite factor = 3
5 =
243
composite factor = 2 × 3
3 × 5 =
270
composite factor = 3
4 × 5 =
405
composite factor = 2 × 3
2 × 5
2 =
450
composite factor = 2 × 3
5 =
486
composite factor = 3
3 × 5
2 =
675
composite factor = 3
6 =
729
composite factor = 2 × 3
4 × 5 =
810
This list continues below...
... This list continues from above
composite factor = 3
5 × 5 =
1,215
composite factor = 2 × 3
3 × 5
2 =
1,350
composite factor = 2 × 3
6 =
1,458
composite factor = 3
4 × 5
2 =
2,025
composite factor = 3
7 =
2,187
composite factor = 2 × 3
5 × 5 =
2,430
composite factor = 3
6 × 5 =
3,645
composite factor = 2 × 3
4 × 5
2 =
4,050
composite factor = 2 × 3
7 =
4,374
composite factor = 3
5 × 5
2 =
6,075
composite factor = 3
8 =
6,561
composite factor = 2 × 3
6 × 5 =
7,290
composite factor = 3
7 × 5 =
10,935
composite factor = 2 × 3
5 × 5
2 =
12,150
composite factor = 2 × 3
8 =
13,122
composite factor = 3
6 × 5
2 =
18,225
composite factor = 3
9 =
19,683
composite factor = 2 × 3
7 × 5 =
21,870
composite factor = 3
8 × 5 =
32,805
composite factor = 2 × 3
6 × 5
2 =
36,450
composite factor = 2 × 3
9 =
39,366
composite factor = 3
7 × 5
2 =
54,675
composite factor = 2 × 3
8 × 5 =
65,610
composite factor = 3
9 × 5 =
98,415
composite factor = 2 × 3
7 × 5
2 =
109,350
composite factor = 3
8 × 5
2 =
164,025
composite factor = 2 × 3
9 × 5 =
196,830
composite factor = 2 × 3
8 × 5
2 =
328,050
composite factor = 3
9 × 5
2 =
492,075
composite factor = 2 × 3
9 × 5
2 =
984,150
60 factors (divisors)
What times what is 984,150?
What number multiplied by what number equals 984,150?
All the combinations of any two natural numbers whose product equals 984,150.
1 × 984,150 = 984,150
2 × 492,075 = 984,150
3 × 328,050 = 984,150
5 × 196,830 = 984,150
6 × 164,025 = 984,150
9 × 109,350 = 984,150
10 × 98,415 = 984,150
15 × 65,610 = 984,150
18 × 54,675 = 984,150
25 × 39,366 = 984,150
27 × 36,450 = 984,150
30 × 32,805 = 984,150
45 × 21,870 = 984,150
50 × 19,683 = 984,150
54 × 18,225 = 984,150
75 × 13,122 = 984,150
81 × 12,150 = 984,150
90 × 10,935 = 984,150
135 × 7,290 = 984,150
150 × 6,561 = 984,150
162 × 6,075 = 984,150
225 × 4,374 = 984,150
243 × 4,050 = 984,150
270 × 3,645 = 984,150
405 × 2,430 = 984,150
450 × 2,187 = 984,150
486 × 2,025 = 984,150
675 × 1,458 = 984,150
729 × 1,350 = 984,150
810 × 1,215 = 984,150
30 unique multiplications The final answer:
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