To find all the divisors of the number 1,000,000,750:
- 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 1,000,000,750:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
1,000,000,750 = 2 × 53 × 7 × 139 × 4,111
1,000,000,750 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) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 4 × 2 × 2 × 2 = 64
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 1,000,000,750
- 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 =
5
prime factor =
7
composite factor = 2 × 5 =
10
composite factor = 2 × 7 =
14
composite factor = 5
2 =
25
composite factor = 5 × 7 =
35
composite factor = 2 × 5
2 =
50
composite factor = 2 × 5 × 7 =
70
composite factor = 5
3 =
125
prime factor =
139
composite factor = 5
2 × 7 =
175
composite factor = 2 × 5
3 =
250
composite factor = 2 × 139 =
278
composite factor = 2 × 5
2 × 7 =
350
composite factor = 5 × 139 =
695
composite factor = 5
3 × 7 =
875
composite factor = 7 × 139 =
973
composite factor = 2 × 5 × 139 =
1,390
composite factor = 2 × 5
3 × 7 =
1,750
composite factor = 2 × 7 × 139 =
1,946
composite factor = 5
2 × 139 =
3,475
prime factor =
4,111
composite factor = 5 × 7 × 139 =
4,865
composite factor = 2 × 5
2 × 139 =
6,950
composite factor = 2 × 4,111 =
8,222
composite factor = 2 × 5 × 7 × 139 =
9,730
composite factor = 5
3 × 139 =
17,375
composite factor = 5 × 4,111 =
20,555
composite factor = 5
2 × 7 × 139 =
24,325
composite factor = 7 × 4,111 =
28,777
This list continues below...
... This list continues from above
composite factor = 2 × 5
3 × 139 =
34,750
composite factor = 2 × 5 × 4,111 =
41,110
composite factor = 2 × 5
2 × 7 × 139 =
48,650
composite factor = 2 × 7 × 4,111 =
57,554
composite factor = 5
2 × 4,111 =
102,775
composite factor = 5
3 × 7 × 139 =
121,625
composite factor = 5 × 7 × 4,111 =
143,885
composite factor = 2 × 5
2 × 4,111 =
205,550
composite factor = 2 × 5
3 × 7 × 139 =
243,250
composite factor = 2 × 5 × 7 × 4,111 =
287,770
composite factor = 5
3 × 4,111 =
513,875
composite factor = 139 × 4,111 =
571,429
composite factor = 5
2 × 7 × 4,111 =
719,425
composite factor = 2 × 5
3 × 4,111 =
1,027,750
composite factor = 2 × 139 × 4,111 =
1,142,858
composite factor = 2 × 5
2 × 7 × 4,111 =
1,438,850
composite factor = 5 × 139 × 4,111 =
2,857,145
composite factor = 5
3 × 7 × 4,111 =
3,597,125
composite factor = 7 × 139 × 4,111 =
4,000,003
composite factor = 2 × 5 × 139 × 4,111 =
5,714,290
composite factor = 2 × 5
3 × 7 × 4,111 =
7,194,250
composite factor = 2 × 7 × 139 × 4,111 =
8,000,006
composite factor = 5
2 × 139 × 4,111 =
14,285,725
composite factor = 5 × 7 × 139 × 4,111 =
20,000,015
composite factor = 2 × 5
2 × 139 × 4,111 =
28,571,450
composite factor = 2 × 5 × 7 × 139 × 4,111 =
40,000,030
composite factor = 5
3 × 139 × 4,111 =
71,428,625
composite factor = 5
2 × 7 × 139 × 4,111 =
100,000,075
composite factor = 2 × 5
3 × 139 × 4,111 =
142,857,250
composite factor = 2 × 5
2 × 7 × 139 × 4,111 =
200,000,150
composite factor = 5
3 × 7 × 139 × 4,111 =
500,000,375
composite factor = 2 × 5
3 × 7 × 139 × 4,111 =
1,000,000,750
64 factors (divisors)
What times what is 1,000,000,750?
What number multiplied by what number equals 1,000,000,750?
All the combinations of any two natural numbers whose product equals 1,000,000,750.
1 × 1,000,000,750 = 1,000,000,750
2 × 500,000,375 = 1,000,000,750
5 × 200,000,150 = 1,000,000,750
7 × 142,857,250 = 1,000,000,750
10 × 100,000,075 = 1,000,000,750
14 × 71,428,625 = 1,000,000,750
25 × 40,000,030 = 1,000,000,750
35 × 28,571,450 = 1,000,000,750
50 × 20,000,015 = 1,000,000,750
70 × 14,285,725 = 1,000,000,750
125 × 8,000,006 = 1,000,000,750
139 × 7,194,250 = 1,000,000,750
175 × 5,714,290 = 1,000,000,750
250 × 4,000,003 = 1,000,000,750
278 × 3,597,125 = 1,000,000,750
350 × 2,857,145 = 1,000,000,750
695 × 1,438,850 = 1,000,000,750
875 × 1,142,858 = 1,000,000,750
973 × 1,027,750 = 1,000,000,750
1,390 × 719,425 = 1,000,000,750
1,750 × 571,429 = 1,000,000,750
1,946 × 513,875 = 1,000,000,750
3,475 × 287,770 = 1,000,000,750
4,111 × 243,250 = 1,000,000,750
4,865 × 205,550 = 1,000,000,750
6,950 × 143,885 = 1,000,000,750
8,222 × 121,625 = 1,000,000,750
9,730 × 102,775 = 1,000,000,750
17,375 × 57,554 = 1,000,000,750
20,555 × 48,650 = 1,000,000,750
24,325 × 41,110 = 1,000,000,750
28,777 × 34,750 = 1,000,000,750
32 unique multiplications The final answer:
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