To find all the divisors of the number 1,950,750:
- 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 1,950,750:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,950,750 = 2 × 33 × 53 × 172
1,950,750 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) × (3 + 1) × (3 + 1) × (2 + 1) = 2 × 4 × 4 × 3 = 96
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,950,750
- 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
prime factor =
17
composite factor = 2 × 3
2 =
18
composite factor = 5
2 =
25
composite factor = 3
3 =
27
composite factor = 2 × 3 × 5 =
30
composite factor = 2 × 17 =
34
composite factor = 3
2 × 5 =
45
composite factor = 2 × 5
2 =
50
composite factor = 3 × 17 =
51
composite factor = 2 × 3
3 =
54
composite factor = 3 × 5
2 =
75
composite factor = 5 × 17 =
85
composite factor = 2 × 3
2 × 5 =
90
composite factor = 2 × 3 × 17 =
102
composite factor = 5
3 =
125
composite factor = 3
3 × 5 =
135
composite factor = 2 × 3 × 5
2 =
150
composite factor = 3
2 × 17 =
153
composite factor = 2 × 5 × 17 =
170
composite factor = 3
2 × 5
2 =
225
composite factor = 2 × 5
3 =
250
composite factor = 3 × 5 × 17 =
255
composite factor = 2 × 3
3 × 5 =
270
composite factor = 17
2 =
289
composite factor = 2 × 3
2 × 17 =
306
composite factor = 3 × 5
3 =
375
composite factor = 5
2 × 17 =
425
composite factor = 2 × 3
2 × 5
2 =
450
composite factor = 3
3 × 17 =
459
composite factor = 2 × 3 × 5 × 17 =
510
composite factor = 2 × 17
2 =
578
composite factor = 3
3 × 5
2 =
675
composite factor = 2 × 3 × 5
3 =
750
composite factor = 3
2 × 5 × 17 =
765
composite factor = 2 × 5
2 × 17 =
850
composite factor = 3 × 17
2 =
867
composite factor = 2 × 3
3 × 17 =
918
composite factor = 3
2 × 5
3 =
1,125
composite factor = 3 × 5
2 × 17 =
1,275
composite factor = 2 × 3
3 × 5
2 =
1,350
This list continues below...
... This list continues from above
composite factor = 5 × 17
2 =
1,445
composite factor = 2 × 3
2 × 5 × 17 =
1,530
composite factor = 2 × 3 × 17
2 =
1,734
composite factor = 5
3 × 17 =
2,125
composite factor = 2 × 3
2 × 5
3 =
2,250
composite factor = 3
3 × 5 × 17 =
2,295
composite factor = 2 × 3 × 5
2 × 17 =
2,550
composite factor = 3
2 × 17
2 =
2,601
composite factor = 2 × 5 × 17
2 =
2,890
composite factor = 3
3 × 5
3 =
3,375
composite factor = 3
2 × 5
2 × 17 =
3,825
composite factor = 2 × 5
3 × 17 =
4,250
composite factor = 3 × 5 × 17
2 =
4,335
composite factor = 2 × 3
3 × 5 × 17 =
4,590
composite factor = 2 × 3
2 × 17
2 =
5,202
composite factor = 3 × 5
3 × 17 =
6,375
composite factor = 2 × 3
3 × 5
3 =
6,750
composite factor = 5
2 × 17
2 =
7,225
composite factor = 2 × 3
2 × 5
2 × 17 =
7,650
composite factor = 3
3 × 17
2 =
7,803
composite factor = 2 × 3 × 5 × 17
2 =
8,670
composite factor = 3
3 × 5
2 × 17 =
11,475
composite factor = 2 × 3 × 5
3 × 17 =
12,750
composite factor = 3
2 × 5 × 17
2 =
13,005
composite factor = 2 × 5
2 × 17
2 =
14,450
composite factor = 2 × 3
3 × 17
2 =
15,606
composite factor = 3
2 × 5
3 × 17 =
19,125
composite factor = 3 × 5
2 × 17
2 =
21,675
composite factor = 2 × 3
3 × 5
2 × 17 =
22,950
composite factor = 2 × 3
2 × 5 × 17
2 =
26,010
composite factor = 5
3 × 17
2 =
36,125
composite factor = 2 × 3
2 × 5
3 × 17 =
38,250
composite factor = 3
3 × 5 × 17
2 =
39,015
composite factor = 2 × 3 × 5
2 × 17
2 =
43,350
composite factor = 3
3 × 5
3 × 17 =
57,375
composite factor = 3
2 × 5
2 × 17
2 =
65,025
composite factor = 2 × 5
3 × 17
2 =
72,250
composite factor = 2 × 3
3 × 5 × 17
2 =
78,030
composite factor = 3 × 5
3 × 17
2 =
108,375
composite factor = 2 × 3
3 × 5
3 × 17 =
114,750
composite factor = 2 × 3
2 × 5
2 × 17
2 =
130,050
composite factor = 3
3 × 5
2 × 17
2 =
195,075
composite factor = 2 × 3 × 5
3 × 17
2 =
216,750
composite factor = 3
2 × 5
3 × 17
2 =
325,125
composite factor = 2 × 3
3 × 5
2 × 17
2 =
390,150
composite factor = 2 × 3
2 × 5
3 × 17
2 =
650,250
composite factor = 3
3 × 5
3 × 17
2 =
975,375
composite factor = 2 × 3
3 × 5
3 × 17
2 =
1,950,750
96 factors (divisors)
What times what is 1,950,750?
What number multiplied by what number equals 1,950,750?
All the combinations of any two natural numbers whose product equals 1,950,750.
1 × 1,950,750 = 1,950,750
2 × 975,375 = 1,950,750
3 × 650,250 = 1,950,750
5 × 390,150 = 1,950,750
6 × 325,125 = 1,950,750
9 × 216,750 = 1,950,750
10 × 195,075 = 1,950,750
15 × 130,050 = 1,950,750
17 × 114,750 = 1,950,750
18 × 108,375 = 1,950,750
25 × 78,030 = 1,950,750
27 × 72,250 = 1,950,750
30 × 65,025 = 1,950,750
34 × 57,375 = 1,950,750
45 × 43,350 = 1,950,750
50 × 39,015 = 1,950,750
51 × 38,250 = 1,950,750
54 × 36,125 = 1,950,750
75 × 26,010 = 1,950,750
85 × 22,950 = 1,950,750
90 × 21,675 = 1,950,750
102 × 19,125 = 1,950,750
125 × 15,606 = 1,950,750
135 × 14,450 = 1,950,750
150 × 13,005 = 1,950,750
153 × 12,750 = 1,950,750
170 × 11,475 = 1,950,750
225 × 8,670 = 1,950,750
250 × 7,803 = 1,950,750
255 × 7,650 = 1,950,750
270 × 7,225 = 1,950,750
289 × 6,750 = 1,950,750
306 × 6,375 = 1,950,750
375 × 5,202 = 1,950,750
425 × 4,590 = 1,950,750
450 × 4,335 = 1,950,750
459 × 4,250 = 1,950,750
510 × 3,825 = 1,950,750
578 × 3,375 = 1,950,750
675 × 2,890 = 1,950,750
750 × 2,601 = 1,950,750
765 × 2,550 = 1,950,750
850 × 2,295 = 1,950,750
867 × 2,250 = 1,950,750
918 × 2,125 = 1,950,750
1,125 × 1,734 = 1,950,750
1,275 × 1,530 = 1,950,750
1,350 × 1,445 = 1,950,750
48 unique multiplications The final answer:
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